PANGGABEAN, F. T. M.; PUSPA OLIVIA PARDEDE; RIZKY MAULI DINI SITORUS; YANI KARTINI SITUMORANG; EVAN S NAIBAHO; JUAN SAMUEL SIMANJUNTAK. Application of 21st Century Learning Skills Oriented Digital-Age Literacy to Improve Student Literacy HOTS in Science Learning in Class IX SMP. Jurnal Mantik, [S. l.], v. 5, n. 3, p. 1992-1930, 2021. Disponível em: https://iocscience.org/ejournal/index.php/mantik/article/view/1796. Acesso em: 1 feb. 2026.