Rusdhi A, Siswoyo P, Adelia T. Test the chemical quality of kefir from goat’s milk and cow’s milk with different fermentation times. JPS [Internet]. 2023 Oct. 28 [cited 2024 Dec. 4];6(4):1626-34. Available from: https://journal-jps.com/new/index.php/jps/article/view/284