Soebandrio, A., Sri-Budayanti, N.N., Widayati, A., Wiwing, V. and Nusatya, M.A. 2004. Role of β−lactamase in the susceptibility of clinical isolates to β−lactam antibiotics. Medical Journal of Indonesia. 13, 3 (Aug. 2004), 140-5. DOI:https://doi.org/10.13181/mji.v13i3.147.