Ratna Dewi Kusumaningtyas,, FT Teknik Kimia and Oktafiani, - and Dhoni Hartanto, - and Prima Astuti Handayani, - (2017) Effects of Solid Vinasse-Based Organic Fertilizer on Some Growth Indices of Tomato Plant. Jurnal Bahan Alam Terbarukan, 6 (2). pp. 190-197. ISSN 2303- 0623

Ratna Dewi Kusumaningtyas,, FT Teknik Kimia and Oktafiani, - and Dhoni Hartanto, - and Prima Astuti Handayani, - and Dimas Rahadian Aji Muhammad, - (2015) Pembuatan Pupuk Organo-Mineral Fertilizer (OMF) Padat dari Limbah Industri Bioetanol (Vinasse). Jurnal Bahan Alam Terbarukan, 4 (2). ISSN 2303- 0623

Ratna Dewi Kusumaningtyas,, FT Teknik Kimia and Prima Astuti Handayani, - and Rochmadi, - and Suryo Purwono, - and Arief Budiman, - (2014) Tin (II) Chloride Catalyzed Esterification of High FFA Jatropha Oil: Experimental and Kinetics Study. Int. Journal of Renewable Energy Development (IJRED), 3 (2). pp. 75-81. ISSN 2252-4940