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Mohd Effendi, Bin Wasli and Meekiong, Kalu and Mugunthan, A/L Perumal and Awang Ahmad Sallehin, Awang Husaini and Sim Siong, Fong (2021) Characterizing Soil Penetration Resistance of Planted Sago Palm (Metroxylon spp.) Under Mineral Soils Ecosystem. Online Journal of Biological Sciences, 21 (4). pp. 338-345. ISSN 1608-4217
Sim Siong, Fong and Mohd Effendi, Bin Wasli and Yong, C. M. R. and Howell, P. S. and Cecelyea, Jumin and Safie, N. A. and Samling, Benedict (2017) Assessment of the humification degree of peat soil under sago (Metroxylon sagu) cultivation based on Fourier Transform Infrared (FTIR) and Ultraviolet-Visible (UV-Vis) spectroscopic characteristics. Mires and Peat, 19 (24). pp. 1-10. ISSN 1819-754X
Sim Siong, Fong and Lau, Seng and Haslinda, Mat (2007) Reuse of nitric acid in the oxidative pretreatment step for preparation of humic acids from low rank coal of Mukah, Sarawak. Journal of the Brazilian Chemical Society, 18 (1). pp. 41-46. ISSN 0103-5053
Sim Siong, Fong and Lau, Seng and Norrafidah, Majri and Haslinda, Mat (2007) A comparative evaluation on the oxidative approaches for extraction of humic acids from low rank coal of Mukah, Sarawak. Journal of the Brazilian Chemical Society, 18 (1). pp. 34-40. ISSN 0103-5053
Sim Siong, Fong and Lau, Seng and Wong Nan, Chong and Janice, Asing and Muhammad Faizal, Md Nor and Amira Satirawaty, Mohd PauzanI (2006) Characterization of the coal derived humic acids from Mukah, Sarawak as soil conditioner. Journal of the Brazilian Chemical Society, 17 (3). pp. 582-587. ISSN 0103-5053