wiryadiputra, soekadar. “Effect of Picung (Pangium Edule) Plant Extracts As a Botanical Pesticide on Mortality of Coffee Berry Borer (Hypothenemus Hampei)”. Pelita Perkebunan (a Coffee and Cocoa Research Journal) 30, no. 3 (December 30, 2014): 220-228. Accessed March 28, 2024. https://www.ccrjournal.com/index.php/ccrj/article/view/64.