* The front side of ticket received usually has a picture, while the back side has policy of the ticket or the BTS route map. On the front side, there is also a mark to show you which side you need to use it to insert into the gate
* The front side of ticket received usually has a picture, while the back side has policy of the ticket or the BTS route map. On the front side, there is also a mark to show you which side you need to use it to insert into the gate