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Puspasar, C.D. and Abdul Rohim Tualeka and Rahmawat, P. and Russen, S.S. and Wahy, A. and Ahsa (2019) Determination of reference of concentration (Rfc) from hydrogen sulfide (h2 s) exposure in the community based on weight in industrial area in medan indonesia. Indian Journal of Public Health Research and Development, 10 (9). pp. 1191-1196.