Pandey, R.K. and Nayak, D. 2020. Biochemical changes in ridge gourd (Luffa acutangula l.) cultivars induced by root knot nematodes. Bangladesh Journal of Botany. 49, 4 (Dec. 2020), 919–925. DOI:https://doi.org/10.3329/bjb.v49i4.52498.