Agustina, Agustina, and Muhammad Yusuf Ahmad. “A Study on Students’ Cognitive Development in Answering English Task”. Al-Hikmah: Jurnal Agama Dan Ilmu Pengetahuan, vol. 17, no. 1, Apr. 2020, pp. 11-28, doi:10.25299/al-hikmah:jaip.2020.vol17(1).3888.