Siriphot, D., Pookrongtong, N. and Lumchanao, W. (2018) “Single CDCTA Based Electronically Adjustable Current-mode Quadrature Sinusoidal Oscillator”, Applied Science and Engineering Progress, 11(3), pp. 209–216. available at: https://ph02.tci-thaijo.org/index.php/ijast/article/view/211343 (accessed: 17 September 2026).