Yafi, Eiad Impact of green training on environmental performance through mediating role of competencies and motivation / Eiad Yafi, Shehnaz Tehseen, Syed Arslan Haider. Tehseen, Shehnaz. Haider, Syed Arslan In: Sustainability [elektronický zdroj]. -- ISSN 2071-1050. -- Vol. 13, iss. 10 (2021).