Paul H. Ptacek・Eric K. Sander ·1963-05-01 ·『Journal of Speech and Hearing Disorders』 28(2) pp. 171-182
2件 (「Adult」)
Robert E. Grinder・Aiko Otomo・Winifred K. Toyota ·1962-12-01 ·『The Journal of Educational Research』 56(4) pp. 191-197
2件 (「Adult」)