Wijirahayu, Suciana, and Rifki Irawan. 2018. “Profesi Engineer Dan Strategi Mengatasi Kecemasan Berbahasa Inggris”. Prosiding Seminar Nasional Teknoka 3 (December):E87-E93. https://journal.uhamka.ac.id/index.php/teknoka/article/view/2830.