“Effect of Curcumma, Zn-Proteinate, and Cu-Proteinate Supplements on Milk Production of Subclinical Mastitis Fries Holland Cows”, JAP, vol. 12, no. 1, May 2011, Accessed: Oct. 30, 2026. Available: https://jap.fapet.unsoed.ac.id/index.php/JAP/article/view/1273