David G. Firth (EDT)/ H. G. M. Williamson (EDT)
(1)
H. G. M. Williamson/ David Allen Hubbard (EDT)/ Glenn W. Barker (EDT)/ John D. W. Watts (EDT)/ Ralph P. Martin (EDT)
(1)
Robert E (Southeastern Oklahoma State University Stevens USA),David L Loudon,R Henry Migliore,Stanley G (University of Louisiana Monroe Williamson USA)
(1)
Russell G. Almond/ Robert J. Mislevy/ Linda Steinberg/ Duanli Yan/ David Williamson
(1)