Ashraf, S. (1998). Basic quantitative methods for economics and business. CADPLAN Pub.
芝加哥风格引文Ashraf, Shahid. Basic Quantitative Methods for Economics and Business. New delhi: CADPLAN Pub, 1998.
MLA引文Ashraf, Shahid. Basic Quantitative Methods for Economics and Business. CADPLAN Pub, 1998.
警告：这些引文格式不一定是100％准确.