Iffah, U. “The Influence of Acupressure Li4 and Sp6 Techniques to the Endorphins Level And Progress of Labor in Period I Active Phase”. Jurnal Ilmiah PANNMED (Pharmacist, Analyst, Nurse, Nutrition, Midwivery, Environment, Dentist), vol. 16, no. 1, May 2021, pp. 229-34, doi:10.36911/pannmed.v16i1.1055.