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Winda Sihotang, Nathanael Sitanggang, Joharis Lubis. The Principal’s Communication Style In Motivating Teachers’ Work At Sma Brigjend Katamso II Medan. IJERSC [Internet]. 2021Dec.19 [cited 2024Nov.7];2(6):1544-8. Available from: https://ijersc.org/index.php/go/article/view/219