Name Parviz Hajiani Affiliation Assistant Professor Degree Ph.D Website — Email hajiani [at] pgu [dot] ac [dot] ir Journal Articles Conference Articles Projects Books Theses Speeches Innovations TitleJournal 1 Evaluating the total-factor efficiency of E3 in oil-producing countries, with emphasis on education ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH online (2023) - 2 Assessment of the total-factor energy efficiency and environmental performance of Persian Gulf countries: a two-stage analytical approach ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH - (2022) -