Yusfiati, Y., E. Chahyadi, and D. Iriani. “Application of Household Waste Treatment Techniques With Earthworms in the Bunga Raya Siak Village Farmers Group”. Journal of Community Engagement Research for Sustainability, vol. 2, no. 2, Mar. 2022, pp. 78-83, doi:10.31258/cers.2.2.78-83.