Numchok Manmai, Katherine Bautista, Yuwalee Unpaprom, and Rameshprabu Ramaraj, “Optimization of combined pre-treatments on sugarcane leaves for bioethanol production”, Maejo Int. J. Energ. Environ. Comm. or MIJEEC, vol. 1, no. 1, pp. 30–39, Mar. 2019.