Ferreria, A. (2002). This business of entrepreneurship. IN Entrepreneurs' help-line [column]. Philippine Star.
芝加哥风格引文Ferreria, Alejandrino. "This Business of Entrepreneurship. IN Entrepreneurs' Help-line [column]." Philippine Star 2002.
MLA引文Ferreria, Alejandrino. "This Business of Entrepreneurship. IN Entrepreneurs' Help-line [column]." Philippine Star, 2002.
警告：这些引文格式不一定是100％准确.