^PDRNS. 2001. Prebiotics. in: PDR for Nutritional Supplements (1st Ed.). Physicians' Desk Reference (PDR); Demoines, Iowa/Medical Economics Data Production Company; Montvale, New Jersey, pp. 372-375
^Hondo, S. & Mochizuki, T., Free Sugars in Miso. Nipon Shokuhin Kogyo Gakkaishi 26(11), (1979) 469-472
^Nishino, R.; Ozawa, Y.; Yasuda, A.; Sakasai, T. 1981. [Oligosaccharides in soy sauce]. Denpun Kagaku 28(2):125-131 [Japanese with English summary]
^Tungland, B.C.; Meyer, D. 2002. Nondigestible oligo-and polysaccharides (dietary fiber): Their physiology and role in human health and food. Compr Rev Food Sci Food Safety 3:73-92
^White, J.W.; Hoban, N. 1959. Composition of honey. IV. Identification of the disaccharides. Arch Biochem Biophys 80(2):386-392