Ratna, Dessy. “The Relationship Of The Influence Of Smartphone Users On Sex Behavior In Adolescent Boys And Women In Hamlet Vii Sei Rattan Village, Percut Sei Tuan District, Deli Serdang”. Science Midwifery 10, no. 2 (April 25, 2022): 970–973. Accessed April 22, 2026. https://midwifery.iocspublisher.org/index.php/midwifery/article/view/417.