FARKLI OKUNABİLİRLİK FORMÜLLERİNE GÖRE DERS KİTABI İNCELEMESİ: ORTAOKUL 8. SINIF T.C. İNKILAP TARİHİ VE ATATÜRKÇÜLÜK DERS KİTABI ÖRNEĞİ (Textbook Analysis According to Different Readability Formulas: Middle School 8th Grade T.R. Revolution History and Kemalism Textbook Example) - Çağrınur SAĞ -Tuğba TURGUT -Selahattin KAYMAKCI | Journal of History School