HUTAGALUNG, S. N.; PANJAITAN, M. . TRIGONOMETRY SIMULATION LEARNING USING SCILAB BUDI DARMA UNIVERSITY. Jurnal Mantik, [S. l.], v. 6, n. 1, p. 519-525, 2022. Disponível em: https://iocscience.org/ejournal/index.php/mantik/article/view/2242. Acesso em: 14 may. 2026.