Alhajri, H. S. H. (2013). The effectiveness of professional training programs for school administrators in Muscat, Oman / Humaid Salem Hamdan Alhajri.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAlhajri, Humaid Salem Hamdan. The Effectiveness of Professional Training Programs for School Administrators in Muscat, Oman / Humaid Salem Hamdan Alhajri. 2013.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAlhajri, Humaid Salem Hamdan. The Effectiveness of Professional Training Programs for School Administrators in Muscat, Oman / Humaid Salem Hamdan Alhajri. 2013.
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