Source: http://dspace.univ-bouira.dz:8080/jspui/bitstream/123456789/1449/1/Analyses%20physico-chimiques%20et%20microbiologiques%20du%20lait%20pasteuris%C3%A9%20conditionn%C3%A9%20de%20Laiterie%20Fromagerie%20de%20Boudouaou.pdf