BHARDWAJ, A.C., and NEELAM TIYAGI. 1991. “ULTRASTRUCTURE OF MESENTERON OF PANTALA FLAVESCENS FABR. (LIBELLULIDAE : ODONATA)”. UTTAR PRADESH JOURNAL OF ZOOLOGY 11 (2):157-61. https://www.mbimph.com/index.php/UPJOZ/article/view/1262.