By Ponnan Ramachandran   in Worldwide Hospitality and Tourism Themes

ISSN:1755-4217|5|4|398-411

Emerald Group Publishing Ltd‎(2013)‎

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By Ponnan Ramachandran   in SHS Web of Conferences

ISSN:2261-2424|53|issue|02002-02002

Edp Sciences‎(2018)‎

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