Khairudin. 2024. “Analisis Usaha Agroindustri Rengginang Ubi Di Desa Tanah Datar Kecamatan Rengat Barat Kabupaten Indragiri Hulu”. Journal of Creative Power and Ambition (JCPA) 2 (02):20-31. https://edujavare.com/index.php/jcpa/article/view/485.