Journal of Service Science and Management (JSSM) , Volume 12 (2019)

Vol.12, No.1, January 2019
Vol.12, No.2, February 2019
Vol.12, No.3, April 2019
Vol.12, No.4, June 2019
Vol.12, No.5, August 2019
Vol.12, No.6, October 2019
Vol.12, No.7, December 2019