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Ali FY, Hasanah H, Kusumaningtyas RN, Asmono SL. Pengaruh Penambahan Ampas Kopi Terhadap Uji Organoleptik Cookies Berbahan Dasar Tepung Ubi Jalar Ungu : The Effect of Spent Coffee Grounds Addition on the Organoleptic Test of Cookies Made from Purple Sweet Potato Flour. JIPH [Internet]. 2025 Nov. 20 [cited 2026 Jun. 8];7(3):349-5. Available from: http://103.127.96.46/index.php/JIPH/article/view/21306