RACHMI; NEVRITA; ABDULHAJAR, E.; ZAITUN. Increasing Student Motivation by Using Problem-Based Learning of Maritime Contextual Problems in Lingga Regency in Mathematics Leaning at SMA Negeri 1 Lingga. Jurnal Pembelajaran Bahasa dan Sastra, [S. l.], v. 4, n. 5, p. 1113–1122, 2025. DOI: 10.55909/jpbs.v4i5.889. Disponível em: http://pembahas.dialeks.id/index.php/jp/article/view/889. Acesso em: 15 oct. 2025.