fatmawati fatmawati, rochmawati laila, maharani sukma meita, tenta irma. INCREASING LEARNING ACHIEVEMENT OF PARTS OF SPEECH THROUGH THE USE OF CROWN ACADEMY OF ENGLISH FIRST YEAR AIRCRAFT ENGINEERING CADETS AT AVIATION POLYTECHNIC OF SURABAYA. jp [Internet]. 2020Feb.13 [cited 2024Nov.20];4(4):61-9. Available from: http://ejournal.poltekbangsby.ac.id/index.php/jurnalpenelitian/article/view/477