1.		Tourism forecasting: to combine or not to combine? / Kevin K. F. Wong [et al.] Resp- Sec.: Wong, Kevin K.F Haiyan, Song Witt, Stephen F Wu, Doris C.
2.		Visualizing tourism trends: a combination of ATLAS.ti and BiPlot / Steve Pan, Kaye Chon, Haiyan Song Autor: Pan, Steve Coautor: ; Chon, Kaye, co-autor Haiyan, Song, co-autor