M. Mokhtar and A. Shuib and D. Mohamad, Mathematical Programming Models for Portfolio Optimization Problem: A Review. journal = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology. January 2014, vol. 86(2). 428 - 435 [viewed 20 September 2024]. Available from: https://publications.waset.org/pdf/9997391.