並前往https://www.studocu.com/tw/document/national-taiwan-university/principle-of-economics/%E5%90%B3%E8%81%B0%E6%95%8F%E7%B6%93%E5%8E%9F-%E5%81%B6%E6%95%B8%E9%A1%8C%E8%A7%A3%E7%AD%94-202002/9827470
