Soemantri, Ag., and Harsoyo N. “Hookworm Infection and Its Problems in Central Java”. Paediatrica Indonesiana 23, no. 9-10 (December 21, 2021): 192-6. Accessed November 23, 2024. https://paediatricaindonesiana.org/index.php/paediatrica-indonesiana/article/view/2906.