Srisuporn, S., Lohachitranont, K. and Charoenjuang, T. (1993) “Prevalence and Factors Relaed to Round Intestinal Worms in Primary School Students, Samutsongkram Province”, Journal of Health Science of Thailand, 2(2), pp. 99–104. Available at: https://thaidj.org/index.php/JHS/article/view/6571 (Accessed: 5December2025).