1. Yak breeding of Kyrgyzstan;Abdykerimov;Bulletin of KNAU,2016
2. Identification of lactic acid bacteria in traditional fermented yak milk and evaluation of their application in fermented milk products;Ao;Journal of Dairy Science,2012
3. 990.20 Solids (total) in milk by direct forced air oven drying. IDF–ISO–AOAC Method;AOAC,2005
4. Babcock method, method no. 989.04;AOAC,2005
5. Kjeldahl method, method no.991.20;AOAC,2005