A. E. Palengka, Y. M. Bambungan, and S. S. I. Lihawa, “Formulation and Physical Evaluation of Shampoo Containing Mahkota Dewa (Phaleria macrocarpa (Scheff.) Boerl.) Leaf Extract Using Carboxymethyl Cellulose”, IJGHR, vol. 8, no. 6, pp. 1351–1362, Nov. 2026.