APA استشهاد

Sang,Heng-Kang. (1995). Project evaluation: Techniques and practices for developing countries. Ashgate.

استشهاد بنمط شيكاغو

Sang,Heng-Kang. Project Evaluation: Techniques and Practices for Developing Countries. U K: Ashgate, 1995.

MLA استشهاد

Sang,Heng-Kang. Project Evaluation: Techniques and Practices for Developing Countries. Ashgate, 1995.