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Hacʿagorcyan, Z. A.; Darbinyan, A. H.; Hovumyan, N. G.; Srvanjtyan, G. H. (1988), “{{{1}}}”, Arešyan G. L. et al., 合编, Ṙus-hayeren politexnikakan baṙaran [Russian–Armenian Polytechnic Dictionary], Yerevan: Haykakan sovetakan hanragitarani glxavor xmbagrutʿyun