This document provides a list of 34 references used in a study on the morphological characteristics of Staphylococcus epidermidis and Klebsiella pneumoniae colonies grown on blood agar plates from isolates of bacteria causing subclinical mastitis in Ettawa goats in Turi, Sleman, Yogyakarta. The references include published literature, standards, reports and theses on topics related to mastitis, isolation of bacteria, use of blood agar media, and characterization of S. epidermidis and K. pneumoniae. Many of the references are in Indonesian and cover studies of mastitis in goats and other livestock in Indonesia.