An-Nufuus, Digwanggi Arum Tazkiyatu, Barlah Rumhayati, Qonitah Fardiyah, Diah Mardiana, Ulfa Andayani, and Layta Dinira. 2023. “Diffusion Coefficient of Phosphate Ion in Citric Acid-Agarose Gel Used in Diffusive Gradient in Thin Films (DGT) Passive Sampler ”. Jurnal Penelitian Pendidikan IPA 9 (8):6035-44. https://doi.org/10.29303/jppipa.v9i8.3593.