Tribrata, Yulita, Ratna Siahaan, Johanis J Pelealu, and Susan M Mambu. 2015. “Kepadatan Cacing Tanah Pada Lahan Pertanian Tomat Terpapar Pestisida Di Desa Ampreng, Kecamatan Langowan Barat - Provinsi Sulawesi Utara (Earthworm Density in Tomato Farming Exposed to Pesticides at Ampreng Village, Langowan Barat Sub District – North S”. JURNAL BIOS LOGOS 5 (1). https://doi.org/10.35799/jbl.5.1.2015.7045.