Khongchana, K., P. Chukumnerd, and W. Chatchawet. “Development of Practice Guideline Using Yogic Health Promotion for Pregnant Women”. Journal of Research in Nursing-Midwifery and Health Sciences, vol. 34, no. 3, Dec. 2014, pp. 1-18, https://he02.tci-thaijo.org/index.php/nur-psu/article/view/27519.