Literature review sub-topics should be rearranged / adjudged. The first literature review sub-topic should be shortened to “Protected Area Category” (change from “The Definition of Protected Areas and (IUCN) Management Category System”). The second sub-topic could be remained (“The Growth of Tourism in National and Protected Areas”) or changed to “Tourism in Protected Areas” which also included national parks. The third and the last sub-topic should be “Tourism Impacts” (change from “Visitor Impacts” and omit two other sub-topics (Positive and Negative Environmental Impacts of Visitors…). The author (s) still can retain all contexts presented without the above mentioned sub-topics.