Stephanie strunk และ Kannapa Pongponrat. (2012) Guided bicycle tours: an alternative way of Bangkok exploration. Mahidol University:ม.ป.ท.Stephanie strunk และ Kannapa Pongponrat. 2012. Guided bicycle tours: an alternative way of Bangkok exploration. ม.ป.ท.:Mahidol University;Stephanie strunk และ Kannapa Pongponrat. Guided bicycle tours: an alternative way of Bangkok exploration. ม.ป.ท.:Mahidol University, 2012. Print.