Produksi lipase ekstraseluler terimobilisasi hasil fermentasi solid state aspergillus niger pada substrat bungkil inti sawit, bungkil kedelai, dan coir pith = Production of extracellular immobilized lipase from solid state fementation of aspergillus niger on palm kernel cake soybean meal and coir pith as substrates - Ratri Kirana Prabaningtyas, author (2016)