Submitted on: 18 February 2023.
Revised on: 02 March 2023.
Accepted on: 15 March 2023.
Research in Transportation Business and Management
http://reply.papertrans.cn/3/265/26437/26437-32.png
http://reply.papertrans.cn/3/265/26437/26437-33.png
Submitted on: 13 May 2013.
Revised on: 18 June 2013.
Accepted on: 23 June 2013.
Research in Transportation Business and Management
Submitted on: 25 January 2000.
Revised on: 06 February 2000.
Accepted on: 29 February 2000.
Research in Transportation Business and Management
http://reply.papertrans.cn/3/265/26437/26437-36.png