Khudair Majeed , Hussein Hoshan Jarullah, Alaa Saleh Abdallah. “THE ROLE OF THE GREEN VALUE CHAIN IN REDUCING COSTS AND ENHANCING SUSTAINABLE COMPETITIVE ADVANTAGE”. PalArch’s Journal of Archaeology of Egypt / Egyptology, vol. 17, no. 6, Nov. 2020, pp. 1341-53, https://www.archives.palarch.nl/index.php/jae/article/view/853.