Dina ampera, Farihah, Achmad hufad, Bakhrul Khair Amal, Anwar Soleh Purba , Muhammad Lailan Arqam. 2020. “MEMORIZATION LEARNING OUTCOMES OF VOCATIONAL HIGH SCHOOL STUDENTS IN LEARNING BASIC PATTERNS”. International Journal of Advanced Science and Technology 29 (06), 1104 -11. http://sersc.org/journals/index.php/IJAST/article/view/11726.