ISAAC, Ogundu,; STEPHEN W., Amadi,; VICTOR, Igrubia,. THE EFFECTS OF TEACHER CONSTRUCTED FURNACE ON STUDENTS’ PERFORMANCE IN HEAT TREATMENT IN TECHNICAL COLLEGES IN RIVERS STATE, NIGERIA. European Scientific Journal, ESJ, [S. l.], v. 11, n. 16, 2015. Disponível em: https://last.eujournal.org/index.php/esj/article/view/5875. Acesso em: 5 feb. 2026.