“DEVELOPING TEACHING MEDIA THROUGH POWTOON AS œTPACK (TECHNOLOGICAL PEDAGOGICAL CONTENT KNOWLEDGE) FOR SPEAKING SKILL AT GRADE 8 STUDENTS OF SMP N 2 BANGUN PURBA”, Linguistica, vol. 11, no. 2, pp. 725–732, Aug. 2022, doi: 10.24114/jalu.v11i2.37756.