หลักหน่วยล่าง สูตร1(เข้า9งวด)งวด1มิถุนายน2562
Airfare prices may be set to increase in 2006, as airlines struggle with rising fuel costs and not enough passengers. The hardest hit are the smaller, budget airlines, such as Independence Air, which closed its doors in the first week of January.
from: http://ezinearticles.com/?Save-Big-on-Airfare:-8-Top-Tips-to-Reduce-the-Cost-of-Your-Airline-Tickets&id=127746
