Source: https://www.researchgate.net/profile/Fouad-Ouad/publication/347963407_State_of_Play_of_the_Environmental_Performance_of_Moroccan_Public_Universities_Open_Access/links/5fea3e7045851553a0017284/State-of-Play-of-the-Environmental-Performance-of-Moroccan-Public-Universities-Open-Access.pdf