Krati Bhardwaj and Harendra Nath Sharma, “Life-Cycle Development and Morphology of Three Butterfly Species: Danaus chrysippus, Papilio demoleus and Papilio polytes (Lepidoptera)”, IJPSR, vol. 2, no. 3, pp. 01–04, Sep. 2026, doi: 10.59436/ijpsr.v2i3.1.3139-342X.