Small Enterprises Research and Development Foundation II.Title. (1987). Introduction to entrepreneurship. Small Enterprises Research and Development Foundation (SERDEF) in cooperation with U.P. Institute for Small-Scale Industries.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Small Enterprises Research and Development Foundation II.Title. Introduction to Entrepreneurship. Quezon City: Small Enterprises Research and Development Foundation (SERDEF) in cooperation with U.P. Institute for Small-Scale Industries, 1987.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Small Enterprises Research and Development Foundation II.Title. Introduction to Entrepreneurship. Small Enterprises Research and Development Foundation (SERDEF) in cooperation with U.P. Institute for Small-Scale Industries, 1987.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.