International tourism has been becoming a substantial sector to be developed in Southeast Asia though actually the region stresses on trade in manufactured goods, mineral and fuel as the main sectors gain high GDP (Timothy 2003). Being marginalized sector in the last decade, travel and tourism solely contribute quite firmly to the economy of countries in Southeast Asia. The contribution is even more than direct total contribution whenever total contribution is taken into account. The latter suggest multiplier effects of travel and tourism. Table 1 demonstrates average total shares of travel and tourism on GDP and employment during 1995 - 2009 are 11.08% and 9.74% respectively, which nearly 2.5 of them is direct contribution of travel and tourism. Direct contribution of travel and tourism to GDP refers to