Role of Biopsychosocial Factors on the Risk of Pneumonia in Children Under-Five Years Old at Dr. Moewardi Hospital, Surakarta. J Matern Child Health [Internet]. 2017 Jun. 4 [cited 2025 Nov. 12];2(2):162-75. Available from: https://www.thejmch.com/index.php/thejmch/article/view/54