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Buryak Valeriy Grigorovich. Methodical bases of estimation of efficiency and labour productivity of personnel of postal communication : к.е.н. : spec.. 08.06.01 - Економіка, організація і управління підприємствами : presented. 2006-04-07; popup.evolution: .; National Telecommunication Academy of Odessa named after A.S. Popov. – , 0406U001723.
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Updated: 2026-11-08