Nghipandulwa , . L. L., Kapenda, . P. H. M. . and Kasanda , . P. C. D. (2020) “Secondary school teachers’ perceptions of practical work in biology in the Oshana Education Region, Namibia”, Journal for Studies in Humanities and Social Sciences, 8(2), pp. 45–62. doi: 10.32642/.v8i2.1513.