Amutkan, D., Z. Suludere, and S. Candan. “Ultrastructure of Digestive Canal of Graphosoma Lineatum (Linnaeus, 1758) (Heteroptera: Pentatomidae)”. Journal of the Entomological Research Society, vol. 17, no. 3, Dec. 2015, pp. 75-96, https://www.entomol.org/journal/index.php/JERS/article/view/971.