D. . Agustin, O. . Hendriyanto, and E. Djuni, “Training on Processing Shellfish Waste into Handicraft Products and Paving Blocks for Youth in The Tambak Oso Sidoarjo”, Nusantara Sci. Tech. Proc., pp. 493–503, May 2020, doi: 10.11594/nstp.2019.0467.