บุญคง พ, เกตุเรน เ, ชัยหนองแปน ช. Development of an E-learning course for healthcare workers studying the developmental surveillance and promotion manual (DSPM). JHEALTH [Internet]. 2022Jun.29 [cited 2026Oct.12];45(1):68-80. Available from: https://www.thaidj.org/index.php/for4d/article/view/12368