Alfred, W., 		Nugraha, R., 		Cindy, C., & 		Budhiyanto, A.
(2019).
 Student Perception of Waste Management in Petra Christian University as a Green Campus.
<em>Proceedings Of The International Conference On Green Technology, 9</em>(1), 12-17.
doi:10.18860/icgt.v9i1.846