ASSIGNED STAFF TASK SUPERVISORY STRATEGY OF SCHOOL ADMINISTRATORS AS CORRELATE OF TEACHERS EFFICACY IN SECONDARY IN SOUTH EAST NIGERIA. INT’L JOURNAL OF HUMANITIES, ECONOMIC DEVELOPMENT AND CONTEMPORARY STUDIES, [S. l.], v. 2, n. 1, p. 128–180, 2026. DOI: 10.66993/2d76a359. Disponível em: https://journals.iempsglobal.org/index.php/IJHEDCS/article/view/340. Acesso em: 5 aug. 2026.