Pal DK, Mandal DK, Bhattacharyya T, Mandal C, Sarkar D. Revisiting the agro-ecological zones for crop evaluation. IJGPB [Internet]. 2009 Nov. 25 [cited 2026 Jun. 1];69(04):315-8. Available from: https://isgpb.org/journal/index.php/IJGPB/article/view/1157