Pravitasari, Retna Deca, et al. “VARIASI PARAMETER CHEMICAL ETCHING NaOH PADA SAMPEL INGOT SILIKON POLIKRISTAL TERHADAP PERMUKAAN MIKROSTRUKTUR”. PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL), vol. 4, Oct. 2015, pp. SNF2015-VII, https://journal.unj.ac.id/unj/index.php/prosidingsnf/article/view/5204.