Simarmata, Goklas, Flora Pasaru, and Burhanuddin Nasir. 2017. “Pengaruh Tumpangsari Tanaman Sawi (Brassica Juncea Linn.) Dan Tanaman Tomat (Solanum Lycopersicum Linn.) Terhadap Serangan Plutella Xylostella Linn. (Lepidoptera: Plutellidae)”. AGROTEKBIS : JURNAL ILMU PERTANIAN (e-Journal) 5 (6), 661-67. http://jurnal.faperta.untad.ac.id/index.php/agrotekbis/article/view/226.