Gautami, Gusti Ayu Agung Tania, and Made Hery Santosa. “Analysis of Implementation and Perception of Online Formative Assessment on Students’ Speaking Skill at Sukasada”. The Art of Teaching English As a Foreign Language (TATEFL), vol. 2, no. 2, Nov. 2021, pp. 119-27, doi:10.36663/tatefl.v2i2.115.