“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”. Open Journal of Environmental Research (ISSN: 2734-2085), vol. 3, no. 1, June 2022, pp. 22 -, doi:10.52417/ojer.v3i1.380.