Sharma Primula Nature based Tourism Planning a case study of Aritar, East Sikkim M.Phil Primula Sharma Singh, Amit Kumar - Gangtok: Sikkim University, 2021. - 102 p. - Department of Tourism . English Subjects--Topical Terms: Nature.Tourism Planning.Aritar, East Sikkim. Dewey Class. No.: 338.479154167 / SHA/N