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1গ্রন্থঅনুযায়ী Martin, Warren Bryan“…University of California, Berkeley. Center for Research and Development in Higher Education…”
প্রকাশিত 1969
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2গ্রন্থঅনুযায়ী Heiss, Ann M.“…University of California, Berkeley. Center for Research and Development in Higher Education…”
প্রকাশিত 1970
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3গ্রন্থপ্রকাশিত 1972“…University of California, Berkeley. Center for Research and Development in Higher Education…”
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4গ্রন্থঅনুযায়ী Heckman, Dale M.“…University of California, Berkeley. Center for Research and Development in Higher Education…”
প্রকাশিত 1968
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5গ্রন্থঅনুযায়ী Cross, K. Patricia (Kathryn Patricia), 1926-“…University of California, Berkeley. Center for Research and Development in Higher Education…”
প্রকাশিত 1968
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6গ্রন্থঅনুযায়ী Cross, K. Patricia (Kathryn Patricia), 1926-“…University of California, Berkeley. Center for Research and Development in Higher Education…”
প্রকাশিত 1971