1. FAO Ad Hoc Consultation on World Shortage of Rennet in Cheesemaking,1968
2. Official Methods of Analyses,,1970
3. Characterization and cheesemaking properties of different animal rennets;Bottazzi;Scienza e Technica Lattiero-Casearia,1974
4. Definition of cheese consistency types.Part II, IDF Bulletin 1968;Burkhalter,1968
5. Different types of animal rennets in ParmigianoReggiano cheesemaking trials;Corradini;Scienza e Technica Lattiero-Casearia,1974