Mustika, Pika, et al. “Penerapan Audit Internal Terpadu Dalam Sistem Manajemen Terpadu Berdasarkan PAS 99:2012 Di Industri Perisa”. Jurnal Mutu Pangan : Indonesian Journal of Food Quality, vol. 3, no. 2, Oct. 2016, pp. 111-7, https://journal.ipb.ac.id/jmpi/article/view/26239.