Alam , M., Salahin , N., Rashid , M. and Salam , M. (2013) “Effects of Different Tillage Practices and Cropping Patterns on Soil Physical Properties and Crop Productivity”, Journal of Tropical Resources and Sustainable Science (JTRSS) , 1(1), pp. 51–61. doi: 10.47253/jtrss.v1i1.670.