- Bhakthan, N., J. H. Borden, and K. Nair. 1970. Fine structure of degenerating and regenerating flight muscles in a bark beetle, Ips confusus I Degeneration. J. Cell. Sci. 6:807-819.
- Bhakthan, N., K. Nair, and J. H. Borden. 1969. Occurence of a fat body layer around the testes of Ips confusus (Coleoptera: Scolytidae). Annals of the Entomological Society of America 62:1495-1496.
- Bhakthan, N., K. Nair, and J. H. Borden. 1971. Fine structure of degenerating and regenerating flight muscles in a bark beelte, Ips confusus II, Regeneration. Canadian Journal of Zoology 49:85-89.
- Bhakthan, N., K. Nair, and J. H. Borden. 1971. Fine structure of degenerating and regenerating flight muscles in a bark beetle, Ips confusus II, Regeneration. Canadian Journal of Zoology 49:85-89.
- Bhakthan, N. M. G., J. H. Borden, and K. K. Nair. 1970. Fine structure of degenerating and regenerating flight muscles in a bark beetle, Ips confusus. I. Degeneration. Journal of Cell Science 6(3):807-819.
- Bhakthan, N. M. G., K. K. Nair, and J. H. Borden. 1969. Occurrence of a fat body layer around the testes of Ips confusus (Coleoptera: Scolytidae) . Entomological Society of America, Annals 62:1495-1496.
- Bhakthan, N. M. G., K. K. Nair, and J. H. Borden. 1971. Fine structure of degenerating and regenerating flight muscles in a bark beetle, Ips confusus. II, Regeneration. Canadian Journal of Zoology 49(1):85-89, 7 plates.