Z, Rizal Umar, et al. “RED BETEL LEAF EXTRACT SERUM (Piper Ornatum) AS AN ALTERNATIVE ANTI-HEAD LICE TREATMENT”. NURSING UPDATE : Jurnal Ilmiah Ilmu Keperawatan P-ISSN : 2085-5931 E-ISSN : 2623-2871, vol. 13, no. 3, Dec. 2022, pp. 248-52, https://www.ojsnhm.com/index.php/NU/article/view/1253.