Mathelda Obisuru (SMA Negeri 1 Kalabahi-Alor, Indonesia)
Widyastuti Purbani (Department of English Education, Universitas Negeri Yogyakarta, Indonesia)
Titis Dewi Cakrawati (Center for Language Development Institute of Educational Development and Quality Assurance, Universitas Negeri Yogyakarta, Indonesia)
Pangesti Wiedarti (Department of English Language Education, Universitas Negeri Yogyakarta, Indonesia)