[1]
A. Syarifuddin, I. Thahir, B. Hasibuan, Z. Siregar, and H. Siregar, “Is Family Planning Already Accepted by the Present Generation? Freshmen’s View on Family Planning at University of North Sumatera, Medan ( Third Report )”, PI, vol. 28, no. 11-12, pp. 238-49, Aug. 2019.