Johanh, Mardi, AND 		Murdan, Meidiwarman.
" UJI JUMLAH INVESTASI ULAT GRAYAK (Spodoptera sp.) TERHADAP INTENSITAS SERANGAN DAN HASIL PRODUKSI TEMBAKAU VIRGINIA" <em>CROP AGRO, Scientific Journal of Agronomy</em> [Online], Volume 9 Number 2 (30 January 2018)