00438nam a22001217a 4500008004100000020001800041050002100059100002400080245008800104260007800192300002100270504002500291230530b        |||||||| |||| 00| 0 eng d  a9781636401683  aG154b .M37 2020  aMary, Apsara Saleth  a The principles of travel agency and tour operation management/cApsara Saleth Mary  a[Place of publication not identified], bWhite Falcon Publishing, c2021.  a215 p. ; c23 cm  aInclude Biblio. Ref.