“Effectiveness of Classic Versions of Options Pricing Models in Recent Waves of Financial Upheavals”. Asian Academy of Management Journal of Accounting and Finance 9, no. 2 (December 31, 2013): 127–155. Accessed May 4, 2024. https://ejournal.usm.my/aamjaf/article/view/aamjaf_vol9-no2-2013_6.