Zalni, Rummy Islami, and Ririn Marsela. “The Relationship of Knowledge and Maternal Mother’s Attitude in Selecting Birth Supporters at UPTD Health Benai”. Journal of Global Research in Public Health, vol. 3, no. 1, Apr. 2018, pp. 31-36, https://www.jgrph.org/index.php/JGRPH/article/view/122.