CLASS EMPOWERMENT OF PREGNANT WOMEN ABOUT COUNTERPRESSURE EDUCATION AND BIRTH BALL FOR PAIN OF LABOR: CLASS EMPOWERMENT OF PREGNANT WOMEN ABOUT COUNTERPRESSURE EDUCATION AND BIRTH BALL FOR PAIN OF LABOR. JURNAL PENGMAS KESTRA (JPK), [S. l.], v. 2, n. 2, p. 145–147, 2022. DOI: 10.35451/jpk.v2i2.1313. Disponível em: https://ejournal.medistra.ac.id/index.php/JPK/article/view/1313. Acesso em: 10 jan. 2026.