Puspita, Roza, 		Rahayu, Resti, 		Mairawita, Mairawita, 		Nasir, Nasril, AND 		Nurmansyah, Nurmansyah.
" The Toxic Effect of Essential Oil from Waste Cinnamon (Cinnamomum burmanii (Nees &amp; T. Nees) Blume.) Leaf to Control Helopeltis antonii Signoret in Cocoa Plants in Vitro" <em>Metamorfosa: Journal of Biological Sciences</em> [Online], Volume 6 Number 1 (15 April 2019)