Ramesh, T., Manjaiah, K., Ngachan, S., & Rajasekar, K. (2014). Chemical and structural characterization of soil humic substances under different land use systems in sub-tropical regions of northeast India. Indian Journal of Horticulture, 71(03), 360–366. Retrieved from https://journal.iahs.org.in/index.php/ijh/article/view/1294