Prasetijowati, T., Setyarahajoe, R. ., Suminah and Sapja (2019) “Asset Re-Functionalization To Build Business Empowerment In The Community Of Scavengers In The Landfill Of Njawar, Surabaya”, Advances in Social Sciences Research Journal, 6(8), pp. 80–86. doi: 10.14738/assrj.68.6876.