APA (7 ম সংস্করণ) উদ্ধৃতি

Danao, R. A. (1990). Strict convexity of the upper level sets of strictly quasiconcave functions. Philippine Review of Economics and Business (formerly The Philippine Review of Business and Economics).

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Danao, Rolando A. "Strict Convexity of the Upper Level Sets of Strictly Quasiconcave Functions." Philippine Review of Economics and Business (formerly The Philippine Review of Business and Economics) 1990.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Danao, Rolando A. "Strict Convexity of the Upper Level Sets of Strictly Quasiconcave Functions." Philippine Review of Economics and Business (formerly The Philippine Review of Business and Economics), 1990.