Al-Haddad, A., 		Kah weng, S., 		Anak jawa, J., 		Abidin, S., 		Phui Yi, T., 		Ryzall, Y., & 		Raja, K.
2021 Aug 31.  Spectrophotometric evaluation of coronal discoloration induced by bioceramic root canal filling materials.. Journal of Oral Research. [Online] 10:4