SARAHTIKA, S.; SARI, R. P. PENERAPAN FUZZY TIME SERIES CHEN UNTUK MERAMALKAN JUMLAH PENERBITAN BLANGKO SERTIFIKAT TANAH PADA KANTOR BADAN PERTANAHAN NASIONAL (BPN) KOTA LANGSA. Amalgamasi: Journal of Mathematics and Applications, [S. l.], v. 3, n. 1, p. 22–31, 2024. DOI: 10.55098/amalgamasi.v3.i1.pp22-31. Disponível em: https://indoms-maluku.org/ojs/index.php/amalgamasi/article/view/30. Acesso em: 8 oct. 2025.