Turning trash into an asset: a case study of prince sultan university campus wasteShabir Hussain Khahro, Tauha Hussain Ali, Zubair Ahmed Memon, Amjad Ali Panhwar and Anas HaribatE3S Web Conf., 167 (2020) 06003DOI: https://doi.org/10.1051/e3sconf/202016706003