Sang,Heng-Kang. (1995). Project evaluation: Techniques and practices for developing countries. Ashgate.
Chicago Stili AlıntıSang,Heng-Kang. Project Evaluation: Techniques and Practices for Developing Countries. U K: Ashgate, 1995.
MLA AlıntıSang,Heng-Kang. Project Evaluation: Techniques and Practices for Developing Countries. Ashgate, 1995.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..