Jompapin ์Narunard. “The relationship between mother age and pregnancy outcomes in Thoen Hospital, Lampang Province”. Journal of Medical and Public Health Region 4 13, no. 1 (April 4, 2023): 8–19. accessed August 27, 2026. https://he01.tci-thaijo.org/index.php/JMPH4/article/view/258740.