Bain & Company. 2018, April 2. Change Management Programs. Retrieved from https://www.bain.com/insights/management-tools-change-management-programs/ (Accessed in September 2020).
BPS. 2019. Executive Summary of Consumption and Expenditure of Population of Indonesia. Based on The September 2019 Susenas. BPS-Statistic Indonesia. 
Creasey, T. The Correlation Between Change Management and Project Success. Retrieved from https://blog.prosci.com/the-correlation-between-change-management-and-project-success (Accesses in October 2020).
Euromonitor International. (2019, November). Packaged Food in Indonesia. Passport. Euromonitor International Ltd.
Hiatt, J. M. 2006. The Essence of ADKAR: A Model for Individual Change Management. Prosci. Retrieved from www.change-management.com (Accessed on September 28, 2020).
Kotter, J. P. 1995. Leading Change: Why Transformation Efforts Fail. Harvard Business Review, March-April.
Mulder, P. 2014. ADKAR Model of Change. Retrieved from https://www.toolshero.com/change-management/adkar-model/ (Accessed on September 29, 2020).
Nadina, R. R. 2011. Methods of Identification of the Need for Organizational Change as Being Opportune. Faculty of Economics and Business Administration. The West University of Timisoara.
Palmer, I. Dunford, R., and Buchanan, D. A. 2017. Managing Organizational Change: A Multiple Perspective Approach. Third Edition. McGraw-Hill Education. New York. 
Shah, M. H, and A. Kiani. 2014. An Application of ADKAR Change Model for the Change Management Competencies of School Heads in Pakistan. Journal of Managerial Sciences. Volume VIII, Number 1.
Sirkin, H. L. Keenan, P., and Jackson A. 2005. The Hard Site of Change Management. Retrieved from https://hbr.org/2005/10/the-hard-side-of-change-management (Accessed in October 2020)
Tang, N. K. 2019. Leadership and Change Management. Springer Nature Singapore Pte Ltd. International College. Khon Kaen University, Thailand.