”An Exploratory Study of Menstruation and Menstrual Hygiene Knowledge Among Adolescents in Urban and Rural Secondary Schools in Cross River State, Nigeria” (2020) African Journal of Biomedical Research, 23(3), s. 321–326. Saatavissa: https://ojshostng.com/index.php/ajbr/article/view/494 (Viitattu: 6 huhtikuuta 2026).