Leungtongkum, Pichet, Somdej Piniwatsoontorn, Prapimporn Somnasang, Manop Kanato, Amornrat Ratanasiri, Srinoi Maskasame, Narumon Sinsupan, และ Mookda Jitjareuntum. 2013. “Study groups of mother or relatives whose level of education are higher Than Prathom 4 which normally look after children better than the Similar Groups who have Prathom 4 education or lower; and study different factors which influence the growth of pres”. ศรีนครินทร์เวชสาร 2 (1):23-30. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/13397.