Purwani, E. Y., et al. “STUDI PENDAHULUAN ENZIM KITINASE EXTRASELULER YANG DIHASILKAN OLEH ISOLAT BAKTERI ASAL MANADO 1) [Preliminary Study of Extracellular Chitinase Produced by Bacteria Isolated from Manado]”. Jurnal Teknologi Dan Industri Pangan, vol. 13, no. 2, Mar. 2012, p. 111, https://journal.ipb.ac.id/jtip/article/view/4338.