1-Khawla Habib Hassoun, studying the possibility of using biogas technology as a way to benefit from organic waste in the Syrian coastal region , master's thesis , Faculty of engineering , Tishreen University ,2019.
2-Najat Abbas Hassan, spatial analysis of the use of natural gas in the production of electrical energy in Iraq, doctoral thesis (unpublished), Faculty of Education, Mustansiriya University, 2012.
3-Najla Talal Turki al-Fahdawi, transportation and marketing of oil products in Anbar Governorate, study in economic geography), master's thesis (unpublished), Faculty of education for Humanities, Anbar University, 2013،
4-Kazem Abdulwahab Hassan al-Asadi and Rashid Abdul Rashid Al-Sharifi, geography of energy, University of Basra, Dar Al-Sadiq Cultural Foundation, 2018.
5-Ahmed Omar Al-Rawi, the economics of Iraqi oil and gas - the paths of success and failure, first edition, Dar Al-Atta, 2016.