Kheiralla, A.K. et al, (2020).  Diversity and distribution of medicinal plants in the Republic of South Sudan. World Journal of Advanced Research and Reviews e-ISSN: 2581-9615

Kheiralla, A.K., et al., (2017).   The Associated Factors Hampering Mothers towards Exclusive Breastfeeding EBF through Knowledge, Attitude and Practice (KAP) Studies at Al-Sabah Children Hospital /Juba -South Sudan.  J. Community Med Public Health: CMPH-101.

Wawa, Y. (2022). COVID-19 in South Sudan and the contraction of CSO programmes.  In: Shrinking or Opening Civic Space in Africa during COVID- 19

Kindersley, N & Wawa, Y (2021).  New Sudan ephemera. In; Pieces of a Nation/ed by Z. Cormack & C Leonardi. Leiden. Sidestone, pp165-168.

Wawa, Y. (2021). Civicness in South Sudan Secondary School Curriculum. In: South Sudan Studies Association, London School of Economics and Political Science, pp 4-17.

Wawa, Y. (2021). Retrieving History in South Sudan National Archives. Wawa, Y (2021).  London, RVI,

Wawa, Y. (2020). Sovereignty, Popular Participation, and Democratization: South Sudan in the East African Community. In: Popular Participation in

Wawa, Y. & Nyibong, D. T.  (2020). Language Policy and Students’ Protests: The Case of Southern Sudan, 1960–2005.  In: Somaliland Peace and Development Journal Vol 4, pp 22-31.Kakwa Proverbs with Introductory History. Kampala. Wawa, Y. (2014).   Fountain Publishers

Wawa, Y. (2017).  Islamisation and Arabicisation and the Break up of the Sudan. In: North East Africa Since the 1960s. London. Ashshort, pp 220-233

Wawa, Y (2016). Golden Tales of the Kakwa with Developmental Songs. Kampala. Marianum P, 2016

Wawa, Y (2014). Southern Sudan – the road to secession In: African Perspectives on Governance: The Case of the Two Sudans. Pretoria. University of South Africa.

Wawa, Y ed.(2014). Concise History of South Sudan. Kampala. Fountain

Tap, W.D., Mtetwa, D.K, & Vere, J.C. (2019). Using Humour for Generating and Maintaining Interest in Mathematics among Secondary School Students in South Sudan Re-settled Communities. African Journal of Research in Mathematics, Science and Technology Education (AJRMSTE), 23(2), 244-253. https:doi.org/10.1080/18117295.2019.1656871.

Tap, W.D., Mtetwa, D.K, & Vere, J.C. (2020). Humour-Supported Instructional Approach: A Method for Generating and Maintaining Interest in Mathematics for Secondary School Students in South Sudan Re-settled Communities. Journal of Education and Training Studies (JETS), 8(8), 55-64.

Tap, W.D., Mtetwa, D.K, & Vere, J.C. (2021). Types of Humour Categories Used to Generate and Maintain Interest in Mathematics among Secondary School Students in South Sudan’s Displaced and Re-settled Communities. Journal of Education and Training Studies (JETS), 9(2), 14-23.

Tap, W.D. (2021). Teaching and Learning Mathematics for Understanding, Enjoyment and Everyday Life Experiences. In M. Bouezzeddine (Eds.), Insights into Global Engineering Education After the birth of Industry 5.0 (pp. 1-18).

Tap, W.D., Bulbul, H.M., & Ajang, B.S. (2022). Views of South Sudanese Secondary School Teachers about the Use of Humour in the Mathematics Classroom*. In M. Kalogiannakis (Eds.), Advances in Research in STEM Education, IntechOpen Publisher: London, UK. *(An already accepted-peer reviewed article as a book chapter, but pending an overdue payment of a required Open Access Publication Fees (OAPF)