Andini, S.; Maelan, N. M.; Dewi, N. M.; Perdani, M. S.; Wahyuningtyas, A. Synthesis Of CMC Pectin Hydrogel (1:2) Using the Freeze-Thaw Method and Its Benefit As An Adsorbent. J. Indones. Soc. Integr. Chemistry 2024, 16, 29-37.