L. Muliyadi, A. Doyan, S. Susilawati, and S. Hakim, “Synthesis of SnO2 Thin Layer with a Doping Fluorine by Sol-Gel Spin Coating Method”, jppipa, pendidikan ipa, fisika, biologi, kimia, vol. 5, no. 2, pp. 175–178, May 2019.