Bachtiar, A., C. Candi, and N. H. Lail. “The Association Between Self Esteem and Self-Efficacy With Mental Illness in Pregnant Women”. Journal of Health Promotion and Behavior, vol. 4, no. 4, Oct. 2019, pp. 267-73, https://thejhpb.com/index.php/thejhpb/article/view/224.