Ritchey และผู้แต่งคนอื่นๆ. (2006) The potential for tactical asset allocation in Hedge funds : evidence from index returns. Chulalongkorn University:ม.ป.ท.Ritchey และผู้แต่งคนอื่นๆ. 2006. The potential for tactical asset allocation in Hedge funds : evidence from index returns. ม.ป.ท.:Chulalongkorn University;Ritchey และผู้แต่งคนอื่นๆ. The potential for tactical asset allocation in Hedge funds : evidence from index returns. ม.ป.ท.:Chulalongkorn University, 2006. Print.