Muhammad Caesar Akbar, Roseptarina Sinaga. Analysis Of The Implementation Of Communication Ethics For Negative Speech At Politeknik Penerbangan Medan: Factors Of Openness, Diversity Of Opinions, Regulations, Professional Ethics, And Supervision. infokum [Internet]. 2025Apr.22 [cited 2025Aug.3];13(03):798-05. Available from: https://seaninstitute.org/infor/index.php/infokum/article/view/2846