Nirwana Perangin-angin. “Time for The Use of Combination Pill Contraception Related to The Case of Blood Pressure in The Scope of The Martapura I Health Center of Banjar District, South Kalimantan Province”. EMBRIO: Jurnal Kebidanan, vol. 12, no. 1, May 2020, pp. 43-50, https://doi.org/10.36456/embrio.v12i1.2292.