Mulyana, Andy and Bavo, Efraim and Marsha, Ni Wayan and Firman, Antares (2018) Proceeding: The International Seminar on Business, Economics, Social Sciences and Technology (ISBEST) 2018 Collaborative Innovation of Economic Society In The Era of The Fourth Industrial Revolution (Industry 4.0). Fakultas Ekonomi Universitas Terbuka, Tangerang Selatan. ISBN 9786023926268