Hamdan, Ahmad Radzi bin, et al. “The Relationship Between Teachers’ Anxiety, Confidence, and Attitudes With Mathematics Achievement of Primary School Pupils: Hubungan Di Antara Kebimbangan, Keyakinan Dan Sikap Guru Dengan Pencapaian Matematik Murid Sekolah Rendah”. Journal of Science and Mathematics Letters, vol. 9, no. 2, July 2021, pp. 49-61, https://doi.org/10.37134/jsml.vol9.2.6.2021.