K. Palakit, K. Duangsathaporn, P. Lumyai, N. Sangram, P. Sikareepaisarn, and C. Khantawan, “Efficiency of Biochar and Bio-Fertilizers Derived from Maize Debris as Soil Amendments”, Environ. Nat. Resour. J., vol. 16, no. 2, pp. 79–90, Jun. 2018.