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1SáchĐược phát hành 1977“…Association for Programmed Learning and Educational Technology…”
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2SáchĐược phát hành 1975“…Association for Programmed Learning and Educational Technology…”
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3SáchĐược phát hành 1976“…Association for Programmed Learning and Educational Technology…”
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4Tạp chíĐược phát hành 1967“…Association for Programmed Learning and Educational Technology…”
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5Tạp chí“…Association for Programmed Learning and Educational Technology…”
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6SáchĐược phát hành 1970“…Association for Programmed Learning and Educational Technology…”
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7Hội nghị đang tiến hànhĐược phát hành 1969“…Association for Programmed Learning and Educational Technology…”
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8SáchĐược phát hành 1973“…Association for Programmed Learning and Educational Technology…”
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9Tạp chíĐược phát hành 1967“…Association for Programmed Learning and Educational Technology…”