Ohnmar Khaing, Praparat Hormchan, Surachrat Jamornmarn, Ngarmchuen Ratanadilok, Arunee Wongpiyasatid. Spatial Dispersion and Optimum Sample Size for Cotton Bollworm, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) Larvae on Cotton. Agr. Nat. Resour. [internet]. 2002 Sep. 30 [cited 2026 Aug. 27];36(3):235-41. available from: https://li01.tci-thaijo.org/index.php/anres/article/view/242723