2024-05-172024-05-171974https://repoemc.ukm.my/handle/123456789/1063Tambahan Perundangan Persekutuan, Akta Kualiti Alam Sekeliling 1974 (Akta 127)mayPeraturan Kualiti Alam Sekeliling Bunyi Bising Kenderaan Motor 1987 – P.U.A 244-87Act