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              Stanton, B. F., Clemens, J. D., Aziz, K. M. A., & Rahman, M. (1987). Twenty-four-hour recall, knowledge-attitude-practice questionnaires, and direct observations of sanitary practic- es: A comparative study. Bulletin of the World Health Organization, 65(2), 217-222.
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              Stanton, B. F., Clemens, J. D., Aziz, K. M. A., Rahman, M. (1987). Twenty-four-hour recall, knowledge-attitude-practice questionnaires, and direct observations of sanitary practic- es: A comparative study. Bulletin of the World Health Organization, 65(2), pp. 217-222.
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