Nafisa A Ibrahim, Wafa I Elhag. Frequency & etiology of Tinea capitis among children attending Dermatology and Venereal diseases hospital –Khartoum. Peace University Journal of science and arts. 2011. 1(1), 108-112.
2. Nafisa A Ibrahim, Wafa I Elhag. occult HepatitisB virus infection in Sudanese haemodialysis patients. LMJ 2013; 1(1): 43- 49.
3. Hashim Omer Mohammed, Wafa Ibrahim Elhag, Nafisa Ahmed Ibrahim. Serofrequency of Epstein Bar Virus among Non Hodgkin's Lymphoma in Sudanese patients attending Radiation and isotope Center. European Academic Research. Vol. III, Issue 6/ September 2015.6778-6788.
4. Mohammed Elsadig Elsayed, Wafa Ibrahim Elhag, Nafisa Ahmed Ibrahim. Prevalence of Rotavirus Infection among under 5 years Children with Diarrhea in Wad Madani Pediatric Teaching Hospital, Gezira State, Sudan. European Academic Research. Vol. III, Issue 4/ July 2015.1587-1596.
5. Nafisa Osman Mohammed, Nafisa Ahmed Ibrahim, Wafa Ibrahim Elhag. SEROFREQUENCY OF HEPATITIS D VIRUS AMONG HEPATITIS B INFECTED PATIENTS, KHARTOUM STATE, SUDAN. Journal of Biomedical and Pharmaceutical Research 4 (5) 2015, 36-40.