Tualeka, A.R., Wibrata, D.A., Ahsan, A., Rahmawati, P., S Russeng, S., Wahyu, A. and Sukarmin, S. 2019. Determination of Highest Dose of Ammonia without Effect at Work Environment through the Expression of Interleukin-2 Cell in Rattus Novergicus. Open Access Macedonian Journal of Medical Sciences. 7, 6 (Mar. 2019), 897–902. DOI:https://doi.org/10.3889/oamjms.2019.207.