Effect of Tithonia Diversifolia Extract on the Biodegradability of the Bioplastics in Plantation Soil (Pengaruh Ekstrak Tithonia Diversifolia Terhadap Biodegradabilitas Bioplastik Di Tanah Perkebunan). MP 2018, 86 (2). https://doi.org/10.22302/iribb.jur.mp.v86i2.293.