Improving Sustainable Tourism in XXIst Century

An effective sustainable tourism in the XXIst century by Amaia Makua and Ruth Ahedo From obscurity to world fame: the transformation of the Puerto Princesa Underground River by Benjamin C. Bagadionm, Nerissa D. Juan and Raymundo V. Lucero Cameroon government policies on tourism and their impact on foreign investment by Eyong Ayuk Ako-Ebot European Cultural Routes for the collective gov...