Calcium soap from palm fatty acid distillate for ruminant feed: Ca(OH)2 as calcium sourceLienda A. Handojo, Antonius Indarto, Dian Shofinita, Anggina Meitha, Rakhmawati Nabila, Harry Triharyogi, Maulana G.A. Hakim and Muhammad R. SaadiMATEC Web of Conferences, 159 (2018) 02062DOI: https://doi.org/10.1051/matecconf/201815902062