APA (7th ed.) Citation

Sitorus, E. T. (1981). Analisa Matematika Ekonomi jilid 2. Saint Joseph's University.

Chicago Style (17th ed.) Citation

Sitorus, Ec. T. Analisa Matematika Ekonomi Jilid 2. Saint Joseph's University, 1981.

MLA (8th ed.) Citation

Sitorus, Ec. T. Analisa Matematika Ekonomi Jilid 2. Saint Joseph's University, 1981.

Warning: These citations may not always be 100% accurate.