2023. Productivity of Earthworms (Pheretima sp.) with the Combination of Cow Dung and Flour of Green Mussel Shell Flour as Cultivation Media. Jurnal Ilmu Produksi dan Teknologi Hasil Peternakan. 11, 2 (Jun. 2023), 88–93. DOI:https://doi.org/10.29244/jipthp.11.2.88-93.