Organization of Islamic Conference (OIC) was established in which year ?

MCQ Practice General knowledge বাংলাদেশ সেতু কর্তৃপক্ষের সহকারী পরিচালক নিয়োগ পরীক্ষা-২০২০

Organization of Islamic Conference (OIC) was established in which year ?

ক 1971
খ 1979
গ 1980
ঘ 1981

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