APA Style

Koch, Richard. (2018). The 80/20 Principle . Surabaya: PT Menuju Insan Cemerlang.

Chicago Style

Koch, Richard. The 80/20 Principle. Surabaya: PT Menuju Insan Cemerlang, 2018. Business Administration, Entrepreneurship.

MLA Style

Koch, Richard. The 80/20 Principle. Surabaya: PT Menuju Insan Cemerlang, 2018. Business Administration, Entrepreneurship.

Turabian Style

Koch, Richard. The 80/20 Principle. Surabaya: PT Menuju Insan Cemerlang, 2018. Business Administration, Entrepreneurship.