Nada, Chafira De, and Endang Fourianalistyawati. “Self-Efficacy and Sleep Quality of Adolescents Who Experience Dysmenorrhea”. Jurnal Psikologi Ulayat: Indonesian Journal of Indigenous Psychology 4, no. 2 (December 1, 2017): 175–187. Accessed October 2, 2022. https://publication.k-pin.org/index.php/jpu/article/view/63.