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Continue to Chatpopova n.s. uchebnik arifmetiki dlja nachalnoj shkoly na izhorskom jazyke. chast 1. dlja 1-go klassa. http://a-121.ru/popova-n-s-uchebnik-arifmetiki-dlya-nachalnoj-shkoly-na-izhorskom-yazyke-chast-1-dlya-1-go-klassa/