.. ??? ???? ??? ????? ???? ??? ?? ????? ????? ?????? ??????? ??????? ??????? - ?????? ????? ????: To vote on existing textbooks through the record, beside each ebook There exists a website link vote for this e-book clicking it can include that e-book for your votes. ??? ????? ???? ???? ??? ????????? ??? ???? ???? ??????? ?? ??????? ?? ???? ?? ??