“IN-VITRO STUDY OF DIMENSION DIE STABILITY FOR LONG FIXED PROSTHESIS TAKEN BY PERFORATED METAL STOCK TRAYS AND SELF-CURING ACRYLIC TRAYS”. Revista Nacional de Odontología, vol. 7, no. 12, Jan. 2014, pp. 35-42, https://revistas.ucc.edu.co/index.php/od/article/view/297.