D. Moniharapon, M. Nindatu, and A. Bastian, “THE EFFECT OF LEMONGRASS EXTRACT (Cymbopogon citratus L.) ON PEST MORTALITY OF Plutella xylostella L. IN MUSTARD PLANTS (Brassica juncea L.)”, Rumph. Patti. Biol. J., vol. 3, no. 2, pp. 034-038, Sep. 2021.