Nnadikwe Johnson; Khama Rieborue Emmanuel; Momoh Abdulazeez Adeyemi; Okpala Blessing Chiamaka; Amaefula Chibunma Vivian. Evaluating the Feasibility and Impact of Petrol-to-CNG Vehicle Retrofitting in Nigeria’s Post-Subsidy Economy. JMP 2026, 4, 308-320.