Agha, A., A. Massoudi, and M. Zaidan. “The Influence of Individual, Environmental, Technology, and Manufacturing Factors on Iraqi Gas and Oil Companies”. Cihan University-Erbil Journal of Humanities and Social Sciences, Vol. 7, no. 1, June 2023, pp. 136-47, doi:10.24086/cuejhss.v7n1y2023.pp136-147.