Joshi, D. R., K. P. Sharma Chapai, and B. Khanal. “Effect of Mathematics Teachers’ Problems in Teaching Equation, Figure, Drawing Symbols and Use of Software on Mathematical Content Instruction”. Journal of Fine Arts Campus, vol. 4, no. 2, Dec. 2022, pp. 11-20, doi:10.3126/jfac.v4i2.54835.