Sa’odah, S., and M. Supriatna. “Investment of Self-Confidence in Cingkrik Rawa Belong Pencak Silat for Elementary School Students”. Al-Adzka: Jurnal Ilmiah Pendidikan Guru Madrasah Ibtidaiyah, vol. 11, no. 1, June 2021, pp. 10-18, doi:10.18592/aladzkapgmi.v11i1.3983.