1. A Guide and Instruction of Java-Bali Transmission and Substation Protection System 1st Edition;karyono;PT PLN (Persero),2013
2. Inrush currents and their effect on protective relays
3. Pola Proteksi Transformator Tenaga Bagian 1: Interbus 500/150 kV, 275/150 kV, 150/66 kV, 150/20 kV, dan 66/20 kV;SPLN T5 003- 1 2010,2010
4. IEEE Guide for Protecting Power Transformers;IEEE Std C37 91- 2008 (Revision of IEEE Std C37 912000),2008
5. Fundamentals of transformer inrush