Intan Sari, Kristina Natalia br Naibaho, Ledyta Roulina Sihombing, Martha Samosir, and Debi Novita Siregar, “THE RELATIONSHIP OF KNOWLEDGE AND MOTHER’S ATTITUDES IN CARRYING OUT BABY SPA FOR BABIES AGED 6-12 MONTHS AT PMB SITI HAJAR MEDAN 2025”, MEDALION, vol. 6, no. 4, pp. 448–454, Dec. 2025.