???? ?? ????????? ??? ?????? ???? ??????? ??????? ??????? ??????? ??? ?????? ?????? ?????????? ???? ?? ???? ???? ?? ??????: ?????? ????? ????? ???? ?? ?????? The textbooks are categorised into graded looking through levels Together with their classification by subject, age, or in accordance with the Worldwide Baccalaureate system adopted in many

????: ????? ???? ??????? ??????? ???? ?? ????? ??????? ??? ???? ?? ?????? ??????. ??? ????? ???? ???? ???? ????? ?????????? ???????? ??? ????? ?????? ?????? ?????? ?????? ?????? ?? ???? ????????? ??? ???????? ??????? ??? ?????? ????? ?????????? ????? ????????? ??? ????? ????????? ??? ??????? ???? ??????? ??????? ?????? ????? ??????. • Subscripti