Ramdan, Iwan M., Novita Anggun P, and Ade Rahmat F. “Risk Factor of Pnemonia Among Children Aged Under 5 Years. A Case Control Study in Samarinda, Indonesia”. International Journal of Medical Science and Clinical Invention 5, no. 3 (March 30, 2018): 3601–3605. Accessed November 23, 2024. https://valleyinternational.net/index.php/ijmsci/article/view/1112.