“EFFECTIVENESS OF NUTRITIONAL IMPROVEMENT AMONG CHILDREN WITH PICKY EATING THROUGH THE USE OF CALOKID GOLD IN SOME PRESCHOOLS IN NORTHERN MIDLAND AND MOUNTAINOUS REGION”. Vietnam Journal of Community Medicine 67, no. 3 (March 31, 2026). Accessed September 8, 2026. https://tapchiyhcd.vn/index.php/yhcd/article/view/4606.