«Maternal, newborn and child health (MNCH) services utilization: A comparative case study of tertiary and primary health care facilities in Cross River State»., AJBR, vol. 24, fasc. 1, pp. 81–92, gen. 2021, Consultato: 11 aprile 2026. [Online]. Disponibile su: https://www.ojshostng.com/index.php/ajbr/article/view/1154