Satria Bangsawan; Mahrinasari MS; Ernie Hendrawaty; Rindu Gamayuni; Nairobi; Hendrati Dwi Mulyaningsih; Ani Wahyu Rachmawati; Santi Rahmawati The Future Opportunities and Challenges of Business in Digital Era 4.0 Proceedings of the 2nd International Conference on Economics, Business and Entrepreneurship (ICEBE 2019), November 1, 2019, Bandar Lampung, Indonesia - Taylor and Francis 2020 ISBN: 9780367853778 Source: EBOOK