“COMBINING EXTENDED PRODUCER RESPONSIBILITY (EPR) AND DEPOSIT REFUND SYSTEM (DRS) POLICY FOR HIGHER RECOVERY AND RECYCLING OF PLASTIC BOTTLES AND SACHET WATER WASTE: APPLICATION OF VENDING MACHINE AND DESIGNATED RETURN DEPOT CENTRE IN LAGOS, NIGERIA” (2022) Open Journal of Environmental Research (ISSN: 2734-2085), 3(1), pp. 22 -. doi: 10.52417/ojer.v3i1.380.