Abdullah, H. and Ibrahim, M. 2023. Sources of astronomical knowledge among Muslims during the Abbasid era (132-656 AH / 750-1258 AD): “Indian and Persian sources as an example”. Humanities Journal of University of Zakho. 11, 3 (Sep. 2023), 653–661. DOI:https://doi.org/10.26436/hjuoz.2023.11.3.1109.