2018. Effect of Tithonia diversifolia extract on the biodegradability of the bioplastics in plantation soil (Pengaruh ekstrak Tithonia diversifolia terhadap biodegradabilitas bioplastik di tanah perkebunan). Menara Perkebunan. 86, 2 (Oct. 2018). DOI:https://doi.org/10.22302/iribb.jur.mp.v86i2.293.