;Levy, Susan,Okoye, Uzoma Odera,Tanga, Pius T.,Ingram, Richard
（1）
Ingram, Linda (Adjunct Professor, School of Sport, Recreation, and Tourism, George Mason University, USA),Slocum, Susan (Associate Professor, Tourism and Event Management, George Mason University, US
（1）
Susan Ingram (EDT)/ Irene Sywenky (EDT)/ Karin Beeler (CON)/ Stan Beeler (CON)/ Albert Braz (CON)
（1）
Susan Ingram/ Markus Reisenleitner
（1）
