Putri, A. and Walfindo, I. 2022. THE ADDED VALUE OF PURPLE SWEET POTATO INTO PROCESSED PURPLE SWEET MILK PIE IN HARAU DISTRICT, LIMAPULUH KOTA REGENCY: NILAI TAMBAH UBI JALAR UNGU MENJADI OLAHAN PIE SUSU UBI UNGU DI KECAMATAN HARAU, KABUPATEN LIMAPULUH KOTA. JURNAL AGRIBISAINS. 8, 1 (Apr. 2022), 13–19. DOI:https://doi.org/10.30997/jagi.v8i1.5246.