N. Ubachukwu, C. Emeribe, A. O. Iyiola, M. Olaniyi, and E. Ogbomida, “Sustainability of Municipal Solid Waste Scavenging and Recycling as Sources of Livelihood in Biu Local Government Area, Borno State”, JKNCU, vol. 6, no. 2, Jul. 2026.