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), 22 -. https://doi.org/10.52417/ojer.v3i1.380