CUMHURİYET HALK PARTİSİ’NİN TEK PARTİ DÖNEMİ SONRASI İDEOLOJİK EVRİMİ: ÖZGÜRLÜKÇÜ MUHALEFET, ORTANIN SOLU VE DEMOKRATİK SOL (1950-1980) (THE REPUBLICAN PEOPLE’S PARTY’S IDEOLOGICAL EVOLU-TION AFTER ONE-PARTY PERIOD: LIBERTARIAN OPPOSITION, MIDDLE LEFT AND DEMOCRATIC LEFT (1950-1980)) - Caner ERDOĞAN - | The Journal of Academic Social Science