R. P. . Harahap, D. Setiawan, N. Nahrowi, S. Suharti, T. Obitsu, and A. Jayanegara, “Enteric Methane Emissions and Rumen Fermentation Profile Treated by Dietary Chitosan: A Meta-Analysis of In Vitro Experiments”, Trop. Anim. Sci. J., vol. 43, no. 3, pp. 233–239, Sep. 2020, doi: 10.5398/tasj.2020.43.3.233.