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1by Joint Africa/Arab States Regional Seminar on Traditional Water Works, Tunis, 1984, Tunisia. Ministry of Agriculture. Research Centre on Rural Engineering, Al-Alamami, Slaheddineprogramme and meeting document bibliotecaUNESCO
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2by Joint Africa/Arab States Regional Seminar on Traditional Water Works, Tunis, 1984, Tunisia. Ministry of Agriculture. Research Centre on Rural Engineering, Al Shabouni, Zoheirprogramme and meeting document bibliotecaUNESCO
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3