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Cost of labor in carrying out various domestic activities. Mocheva, Hristina. Selskoto Zemedelsko Domakinstvo v Bŭlgariia prez 1935/36 Godina. Biudzhet, Obstanovka i Razhod na Trud. Sofiia: Darzhavna pechatnitsa, 1938, p.43.

Cost of labor in carrying out various domestic activities. Mocheva, Hristina. Selskoto Zemedelsko Domakinstvo v Bŭlgariia prez 1935/36 Godina. Biudzhet, Obstanovka i Razhod na Trud. Sofiia: Darzhavna pechatnitsa, 1938, p.43.

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