SINAGA, Yolanda; SIMARMATA, Rina Octavia; PAKPAHAN, Carolina; PANGGABEAN, Sarma. Improving Students Vocabulary Mastery by Using Ice Breaker Activities to the First Graders of SMP HKBP Sidorame. Innovative: Journal Of Social Science Research, [S. l.], v. 3, n. 2, p. 8237–8242, 2023. Disponível em: http://j-innovative.org/index.php/Innovative/article/view/1113. Acesso em: 30 nov. 2025.