Tipvadee Attathom, Sudawan Chaeychomsri, Suvalux Chaichuchot, Supat Attathom and Pissawan Chiemsombat 1988. Characerization of the Nuclear Polyhedrosis Virus of the Cotton Bollworm, Heliothis armigera. Agriculture and Natural Resources. 22, 5 (Dec. 1988), 14–23.