HENG, T. M. (1990). An Economic Framework Of Singapore Principles And Issues Toh Mun Heng, Linda Low. McGraw-Hill.
Chicago Style (17. basım) AtıfHENG, Toh Mun. An Economic Framework Of Singapore Principles And Issues Toh Mun Heng, Linda Low. McGraw-Hill, 1990.
MLA (8th ed.) AtıfHENG, Toh Mun. An Economic Framework Of Singapore Principles And Issues Toh Mun Heng, Linda Low. McGraw-Hill, 1990.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..