Christanti, A. “IMPROVING STUDENTS’ SPEAKING ABILITY USING GUESSING GAMES IN SMP AL FALAH DELTASARI SIDOARJO”. Jurnal Educazione : Jurnal Pendidikan, Pembelajaran Dan Bimbingan Dan Konseling, vol. 4, no. 2, Nov. 2016, pp. 98-110, https://ejurnal.uij.ac.id/index.php/EDU/article/view/175.