Ningsih, Dian, 		Widyaningsih, Senny, AND 		Gunawan, Diah.
" PRODUK SABUN CUCI TANGAN CAIR (HAND SOAP) DARI KULIT NANAS DESA SIWARAK KECAMATAN KARANGREJA KABUPATEN PURBALINGGA" <em>Prosiding Seminar Nasonal LPPM UNSOED</em> [Online], Volume 13 Number 1 (11 January 2024)