Minhando, E. A. F., Sudarmo, S., & Rahmanto, A. N. (2021). Integrated contact center HAI (Help, Answer, Improve) as information service innovation at the Ministry of Finance, Indonesia. Management and Entrepreneurship: Trends of Development, 3(17), 27-42. https://doi.org/10.26661/2522-1566/2021-3/17-03