Chun Minh Loy, A.; Yusup, S.; Shen How, B.; Herng Chan, Y.; Lai Fui Chin, B.; Borhan, A.; Yeong Lim, H. Optimization Study of Syngas Production from Catalytic Air Gasification of Rice Husk. Int. J. Adv. Sci. Eng. Inf. Technol. 2020, 10, 1784-1791.