ISBN 0-85112-519-0 Niu, Jiurong. The Design and Development of Tourist Souvenirs in Henan (PDF). International Symposium on Tourism Resources and Management: 329–332
assassination. International Journal of Heritage Studies. 1996, 2 (4): 198–211. Sampson, Hannah. Dark tourism, explained - Why visitors flock to sites of tragedy
visiting of the slums of the great city by parties of ladies and gentlemen for sightseeing -- is mildly practiced here by our foreign visitorsby a tour of the