Firdaus, R. P., and R. P. Dalimunthe. “Takhrij Dan Syarah Hadith of Chemistry: Use of Formaldehyde in the Preservation of Corpse”. International Journal on Orange Technologies, Vol. 3, no. 8, Aug. 2021, pp. 19-23, doi:10.31149/ijot.v3i8.2099.