GERALD, W editor. Probiotics, A critical review Probiotics. 1999
GERALD, W editor. Probiotics and Prebiotics : Where are We Going. 2002
FOO, EL editor. The Lactic Acid Bacteria. 2002
YERZINKIAN, LA. Domestic strains of Lactobacteruim acidophilum and some products of their activity. Problems of Agricultural and Industrial Microbiology Collect.. Sci.. Papers, Yerevan. 1953, N1, 7, 123-139
YERZINKIAN, LA. Antibiotic properties of some lactic acid bacteria of the intestinal tract. Problems of Agricultural and Industrial Microbiology, Collect.. Sci.. Papers, Yerevan. 1961