BusseL.HendersonH.Effects of contingency management upon reading achievement of junior high educable mentally retarded students. Education and Training of the Mentally Retarded, 1972, 7, 67.
JordanJ.RobbinsL. (Eds.). Let's try doing something else kind of thing—Behavioral principles and the exceptional child. Arlington VA: The Council for Exceptional Children, 1972.
4.
StarlinC.Peers and precision. TEACHING Exceptional Children, 1971, 3, 129.