Agustini Tripena, Niken Larasati, Agus Sugandha, & Putri Raffikah. (2024). Fourier Series Estimator For Estimation of Birespon Nonparametric Regression Curves. International Journal of Technology and Education Research, 2(03), 184-212. https://doi.org/10.63922/ijeter.v2i03.1320