Bahari Alias, Azil, Muhamad Ariff Amir Hamzah, Zulkifli Abdul Rashid, Amirul Rahman Mohd Nor, and Wan Azlina Wan Ab Karim Ghani. 2018. “Effect of Sorbent Weight on H2S Removal by Biochar and Hydrogel Biochar Derived from Rice Husk”. International Journal of Engineering & Technology 7 (4.18): 359-63. https://doi.org/10.14419/ijet.v7i4.18.21957.