Ying, H. S., Wasli, M. E. bin, & Perumal, M. (2018). SOIL CHARACTERISTICS UNDER INTENSIFIED SHIFTING CULTIVATION FOR UPLAND RICE CULTIVATION IN UPLAND SABAL, SARAWAK, MALAYSIA. BIOTROPIA, 25(1), 72–83. https://doi.org/10.11598/btb.2018.25.1.799