Saimin, J. et al. 2021. Vaginal pH of Menopausal Women is Related to the Duration of Menopause: Keasaman Vagina Perempuan Menopause Berhubungan dengan Lamanya Menopause. Indonesian Journal of Obstetrics and Gynecology. 9, 2 (Apr. 2021), 74–77. DOI:https://doi.org/10.32771/inajog.v9i2.1483.