Siriphan, Siriphan, Narisa Chantaburee, Urai Yodkaew, and Juthamas Ieamwuthiwattana. “Effectiveness of the San Yai Rak 3-in-1 lingerie Innovation in Reducing Breast Engorgement, Back Pain, and Afterpain in Postpartum Mothers”. Princess of Naradhiwas University Journal 17, no. 3 (September 18, 2025): 158–178. accessed August 28, 2026. https://li01.tci-thaijo.org/index.php/pnujr/article/view/267608.