T. Idayanti and S. F. Umami, “THE EFFECT OF PREGNANCY EXERCISE ON THE SMOOTH DELIVERY OF THE SECOND STAGE OF CHILDBIRTH PROCESS IN EKA MEDIKA PRATAMA CLINIC, PUNGGING VILLAGE, MOJOSARI SUB-DISTRICT, MOJOKERTO DISTRICT”, nhjk, vol. 7, no. 2, pp. 133-140, Dec. 2018.