1. Anonymus, (2002, March). Analysis tourism management in Pakistan chapter 5 Establishment & Administration Department, NWFP. Retrieved on March 6, 2002 from ULR: prr.hec.gov.pk/chapters/7s-5.pdf.
2. Aranzabal, I., Schmitz, M. and F. Pineda, (2009). Integrating Landscape Analysis and Planning: A Multi-Scale Approach for Oriented Management of Tourist Recreation. Environmental Management, 44(5), 938-951.
3. Arjun, R., (2013, January). Components of tourism. Retrieved on January 24, 2013 from http://www.slideshare.net/ArjunRamesh1/components-of-tourism
4. Arnberger, A. & R. Eder, (2011). In his study Coping as a Moderator of The Relation between Recreation Hassles and Hiker Satisfaction, including surveys were conducted on trails in Yangmingshan National Park in Taiwan. Contemporary Manag Res – pp. 273-286, Vol. 10, No. 4.
5. Ayeni, D.A., (2012). Landscape element As Important Components of a sustainable built environment. Developing Country Studies, 2(8), 33-43.