วิ่งล่างตัวเดียว (รวม2สูตร) 2/05/62 ถูก7งวดติด
During the infancy of the Jet Age around the 1950s, many mysteries were solved through that amazing chain of invention. Over the past few decades, however, as evidence has clearly demonstrated the insidiousness that flying entails, safety becomes the mindset of the airline industry.
from: http://ezinearticles.com/?The-Economics-of-Airline-Safety&id=338315
