1. EN 13306:2001. (2001). Maintenance Terminology. European Standard. CEN (European Committee for Standardization), Brussels.
2. Campbell JD, Jardine AKS, editors. Maintenance excellence: Optimizing equipment life-cycle decisions. New York: Marcel Dekker; 2001.
3. Uptime. Strategies in excellence in maintenance management;Campbell,1995
4. Maintenance resources management;Shenoy,1998
5. Developing performance indicators for managing maintenance;Wireman,1998