20935 1369 10 Lewis Paul Todd Primary Author Merle Curti Additional Author mixed material 0152760702 New York Harcourt Brace Jovanovich 1972 Made Ayu Wirayati Primary Author Ellis Sekar Ayu Additional Author Aris Riyadi Additional Author mixed material 9789790086319 Jakarta Perpustakaan Nasional Katalog Dalam Terbitan 2013 An Introduction to Travel Agency Operations 1th.Ed Armin D. Lehmann Primary Author mixed material 0672970902 Indianapolis The Bobbs -Merrill 1978 Harold Koontz Primary Author Heinz Weihrich Additional Author Cyril O'Donnel Additional Author mixed material 0070353778 Tokyo McGraw-Hill 1980 Concepts and Application Ronald J. Thacker Primary Author Loudell Ellis Additional Author mixed material 0835941949 Virginia Reston Publishing 1981 Carl L.Moore Primary Author Robert k. Jaedicke Additional Author Lane K.Anderson Additional Author mixed material 0538019506 Ohio South-Western Co 1984 Lovincy J.Adams Primary Author Russel Journigan Additional Author mixed material New York Holt, Rinehart and Winston 1967 A Strategic Approach Tapscott Primary Author Henderson Additional Author Greenberg Additional Author mixed material 0870946536 Canada Dow Jones-Irwin 1818 Charles P. Kindleberger Primary Author mixed material 0256014353 Illinois Irwin 1973 Carl McDaniel Additional Author Lawrence J.Gitman Primary Author mixed material 0471081655 New York Jhon Wiley & Sons 1983