Hong Ooi, Ing, Shi Hui Ng, Yie Kie Chong, and See Kiat Wong. 2015. “Swelling Properties of Poly(N-Isopropylacrylamide) Calcium Alginate Interpenetrating Polymer Network Hydrogel Containing Zirconia”. Asian Journal of Chemistry 27 (9):3489-93. https://doi.org/10.14233/ajchem.2015.19015.