R. Thackray

Tests of Harmonic Perception

R. Thackray, 1973 .

International Society for Music Education

T. A. Jones, R. Thackray, J. Ritchie, 1963 .

Measurement of Perception of Tonality

R. Thackray, 1976 .

Rhythmic Abilities and Their Measurement

R. Thackray, 1969 .