1. Essais des eaux;AFNOR,1985
2. Biochemical activity of mixed bacterial cultures acclimated to thiocynate;Buczowska;Bull. Inst. Mar. Med. Gdansk,1968
3. Bactericidie;Courvalein,1990
4. Dehydrated Culture Media and Reagents for Microbiology;Difco Manual,1984