«Maternal, newborn and child health (MNCH) services utilization: A comparative case study of tertiary and primary health care facilities in Cross River State»., AJBR, т. 24, вып. 1, сс. 81–92, янв. 2021, просмотрено: 2 май 2026 г. [онлайн]. доступно на: https://ojshostng.com/index.php/ajbr/article/view/1154