SATYADHARMA, W. R. Optimalisasi proses produksi tiang pancang (spun pile) menggunakan connector ring pada cetakan. Seminar Nasional Insinyur Profesional (SNIP) , [S. l.], v. 2, n. 1, 2022. DOI: 10.23960/snip.v2i1.39. Disponível em: https://snip.eng.unila.ac.id/ojs/index.php/snip/article/view/39. Acesso em: 29 oct. 2025.