TJAHYATI, Hermin. STONE COLUMN. Jurnal Jalan Jembatan, [S. l.], n. 1, p. 2–4, 1989. Disponível em: https://binamarga.pu.go.id/jurnal/index.php/jurnaljalanjembatan/article/view/528. Acesso em: 1 oct. 2025.