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		Puspita, R., 		Rahayu, R., 		Mairawita, M., 		Nasir, N., & 		Nurmansyah, N.
(2019).
 The Toxic Effect of Essential Oil from Waste Cinnamon (Cinnamomum burmanii (Nees & T. Nees) Blume.) Leaf to Control Helopeltis antonii Signoret in Cocoa Plants in Vitro.
<em>Metamorfosa: Journal Of Biological Sciences, 6</em>(1), 51-57.
doi:10.24843/metamorfosa.2019.v06.i01.p09