Wahyono, I. D. .; Saryono, D. .; Putranto , H. .; Asfani , K. .; Rosyid , H. A. .; Sunarti; Mohamad , M. M. .; Mohamad Said, M. N. H. B. . .; Horng, G. J. .; Shih , J.-S. . Emotion Detection Based on Column Comments in Material of Online Learning Using Artificial Intelligence. Int. J. Interact. Mob. Technol. 2022, 16, pp. 82-91.