E. Zaini, R. P. Marhammah, L. Fitriani, U. Hasanah, and S. Umar, “The Preparation and Characterization of the Solid Dispersion of Piperine with Hydroxypropyl Methylcellulose (HPMC) 2910 Using Spray Drying: doi.org/10.26538/tjnpr/v5i12.10”, TJNPR, vol. 5, no. 12, pp. 2103–2107, Dec. 2021.