Nyabuto, Isabella, and Carlos Rodriguez. “Evaluation Study of Vaccination Programs for Elementary School-Aged Children in Rural Areas”. Journal i Mappedic: Health Science Studies 1, no. 1 (December 1, 2023): 31–40. Accessed July 7, 2025. https://celebesscholarpg.com/index.php/iMappedic/article/view/101.