Anh, Luu The, Nguyen Thi Thuy, Nguyen Duc Thanh, and Hoang Quoc Nam. 2015. “Assessment of Organic Matter Content in Basalt Soils under Cultivation of Major Crops in Dak Lak Province”. Vietnam Journal of Earth Sciences 37 (2):110-17. https://doi.org/10.15625/0866-7187/37/2/7366.