Pujianto, Tutut, and Puguh Santoso. “Age, Weight, and Menstruation As Determinants of Blood Haemoglobin Levels in Adolescent Girls”. Jurnal Keperawatan Profesional (KEPO), vol. 6, no. 1, May 2025, pp. 11-18, doi:10.36590/kepo.v6i1.1137.