Muslim, F., Refnida, R., Chen, D. and Wirayuda, R.P. 2021. Macroeconomic Digital Book Development: How are the Feasibility of Experts and Student Responses?. Journal of Education Technology. 5, 3 (Oct. 2021), 501–510. DOI:https://doi.org/10.23887/jet.v5i3.38280.