Okafor, A. M., & Okoli, J. N. (2026). EFFECT OF FLIPPED CLASSROOM INSTRUCTIONAL STRATEGY ON STUDENTS’ ACADEMIC ACHIEVEMENT AND INTEREST IN BIOLOGY IN SECONDARY SCHOOLS IN NNEWI EDUCATION ZONE. International Journal of Premium Advanced Educational Research, 2(04), 30-46. https://doi.org/10.5281/zenodo.21580415