Hardjanti, T. S., Suparmi, and Sunarto. “Efektivitas Posisi Bersalin Terhadap Lama Kala II Persalinan: Effect of Maternity Position on the Length of Second Stage of Labor”. Indonesian Journal of Midwifery (IJM), vol. 7, no. 2, Sept. 2024, pp. 155-63, doi:10.35473/ijm.v7i2.2493.