Mahabad Mustafa Ahmed و Sattar Jabbar Haji 2022. The Effectiveness of Peer-Led Team Learning (PLTL) in the Achievement of Seventh-Grade Students in the Subject of Science and Developing their Team Working Skills. Journal of Arts, Literature, Humanities and Social Sciences. 82 (2022), 145-175. DOI:https://doi.org/10.33193/JALHSS.82.2022.711.