Zairi , M. H., Adlan , M. A. A., Tarudin , N. F., & Md Hanafiah, R. (2025). Assessing The Summons Compound for Modifying Motorcycle Exhaust Pipes towards an Environmentally Sustainable . Environment-Behaviour Proceedings Journal, 10(SI41), 65–71. https://doi.org/10.21834/e-bpj.v10iSI41.7734