N. J. Ritonga, H. A. Majidah, R. Sitorus, D. E. Anuhgera, K. Hayati, and A. S. G. Purba, “THE EFFECT OF BABY MASSAGE ON BREASTFEEDING DURATION IN NINING PELAWATI CLINIC AT LUBUK PAKAM”, JKK, vol. 3, no. 1, pp. 105–109, Oct. 2020.