Sjenny Olga Tuju (2023) “Preparation for Childbirth Through Massage Effluerage Training, Hypnobirthing Yoga Exercises in Silian 1 Village, Silian District, Southeast Minahasa Regency”, Jurnal Nusantara Berbakti, 1(1), pp. 27–35. doi: 10.59024/jnb.v1i1.18.