A.- hamid A. Ramadhan, Y. A. R. Yussuf, A. I. Ali, M. N. Eyduu, and A. R. Rabia, “Assessment of Food Vendors’ Sanitation, Hygiene and Practices in Urban District Primary Schools in Zanzibar, Tanzania”, ASSM, vol. 3, no. 06, pp. 413–420, Jan. 2026.