Napitupulu, Fenty Debora, Sri Sofian Sianturi, Kammer Sipayung, and Sahlan Tampubolon. 2021. “Tact Maxims in Asking Questions in English Teaching Learning Process”. Linguistics and Culture Review 5 (S3):1627-35. https://doi.org/10.21744/lingcure.v5nS3.1949.