N.A Tennakoon, and M. de S, Liyanage. “NET N MINERALISATION IN COCONUT/NITROGEN FIXING TREE BASED SYSTEM”. CORD 13, no. 01 (June 1, 1997): 34. Accessed May 3, 2024. https://journal.coconutcommunity.org/index.php/journalicc/article/view/307.