Perangin-Angin W, Sitinjak AA. The Amount of Impact Force on the Hammer Mill on the Fineness of Animal Feed. IRA J.Tek. Mesin Dan Apl [Internet]. 2023 Apr. 12 [cited 2025 Aug. 8];2(1):11-5. Available from: https://www.e-journals.irapublishing.com/index.php/IRAJTMA/article/view/38