2024-05-172024-05-171974https://repoemc.ukm.my/handle/123456789/1067Tambahan Perundangan Persekutuan, Akta Kualiti Alam Sekeliling 1974 (Akta 127)mayPeraturan Kualiti Alam Sekeliling Kawalan Kepekatan Plumbum Dalam Gasolin Motor 1985 – P.U.A 269-85Act