Lestari, N. M. P., N. N. Padmadewi, N. L. P. E. S. Dewi, and L. P. Artini. “OBSERVED AND PERCEIVED READINESS OF ENGLISH TEACHERS IN CONDUCTING TEACHING LEARNING PROCESS BASED ON 21ST CENTURY SKILLS”. International Journal of Language and Literature, vol. 4, no. 3, Dec. 2020, pp. 133-9, doi:10.23887/ijll.v4i3.30298.