Massawe , A. ., and G. Frumence. “Strategies for stakeholders’ Engagement in the Provision of Health Services: The Case of Immunization and Vaccine Development Program in Tanzania”. East African Journal of Public Health, vol. 16, no. 1, June 2024, pp. 21-37, https://journal.muhas.ac.tz/index.php/ejph/article/view/19.