books.google.com - The 21ST CENTURY BUSINESS SERIES is an innovative instructional program providing instructors with the greatest flexibility to deliver business content using a modular format. Instructors can create their own business courses by combining several Learner Guides in the Series to form one-semester or two-semester...https://books.google.com/books/about/21st_Century_Business_Intro_to_Business.html?id=91V6_EEO9XoC&utm_source=gb-gplus-share21st Century Business: Intro to Business