Funding for this research was provided by:
Pusat Penyelidikan Automotif, Universiti Kebangsaan Malaysia (MI-2018-011)
Text and Data Mining valid from 2019-10-16
Received: 16 July 2019
Accepted: 1 October 2019
First Online: 16 October 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.