Khatoon, M. Z. ., Alam, M. T. ., Bukhari, M. A. . and Mushtaq, M. . (2014) “In-Service Teachers Perception about Their Competencies in Delivery of Biology Lessons”, International Journal of Asian Social Science, 4(7), pp. 820–834. Available at: https://archive.aessweb.com/index.php/5007/article/view/2680 (Accessed: 3 July 2024).