Sihombing, Juliana Sion, Nur Azizah Lubis, and Naimah Nasution. “The Relationship Between Baby Massage and Baby Sleep Quality at the Sion Clinic”. Journal of Midwifery and Nursing 6, no. 1 (January 30, 2024): 367-371. Accessed July 9, 2026. https://iocscience.org/ejournal/index.php/JMN/article/view/4656.