Ratna Dewi Kusumaningtyas,, FT Teknik Kimia and Normaliza Normaliza, - and Elva Dianis Novia Anisa, - and Haniif Prasetiawan, - and Dhoni Hartanto, - and Harumi Veny, - and Fazlena Hamzah, - and Miradatul Najwa Muhd Rodhi, - (2022) Synthesis of Biodiesel via Interesterification Reaction of Calophyllum inophyllum Seed Oil and Ethyl Acetate over Lipase Catalyst: Experimental and Surface Response Methodology Analysis. energies, 15. pp. 1-15.

Nur Qudus, - and Ratna Dewi Kusumaningtyas,, FT Teknik Kimia and Zakky Syamrizal, - and Dhoni Hartanto, - and Zainul Akmar Zakaria, - (2021) Vinasse-Based Slow-Release Organo-Mineral Fertilizer with Chitosan-Bentonite Matrix. Jurnal Bahan Alam Terbarukan, 10 (1). pp. 1-8. ISSN 2303- 0623

Ratna Dewi Kusumaningtyas,, FT Teknik Kimia and Dhoni Hartanto, - and Hasan Abdul Rohman, - and Mitamaytawati, - and Nur Qudus, - and Daniyanto, - (2020) Valorization of Sugarcane-Based Bioethanol Industry Waste (Vinasse) to Organic Fertilizer. In: Valorisation of Agro-industrial Residues – Volume II: Non-Biological Approaches. Applied Environmental Science and Engineering for a Sustainable Future, II . Springer, pp. 203-223. ISBN 978-3-030-39207-9

Achmad Chafidz, - and Cholila Tamzysi, - and Lilis Kistriyani, - and Ratna Dewi Kusumaningtyas,, FT Teknik Kimia and Dhoni Hartanto, - (2019) Mechanical Properties of PP/clay Nanocomposites Prepared from Masterbatch: Effect of Nanoclay Loadings and Re-Processing. Key Engineering Materials, 805. pp. 59-64. ISSN 1013-9826

Widi Astuti (2019) Metode pembuatan karbon aktif dari limbah kulit pisang kepok menggunakan gelombang mikro. IDS000002863.

Megawati, FT Teknik Kimia and Dhoni Hartanto, - and Catur Rini Widyastuti, - and Diyah Saras Wati, - and Eny Nurhayati, - (2018) The Kinetics of Calcium Oxide Catalyzed Esterification of Glycerol with Free Fatty Acids Using Pseudo-homogeneous Model Approach. Reaktor, 18 (1). pp. 1-6. ISSN 0852 – 0798

Megawati, FT Teknik Kimia and Dewi Selvia Fardhyanti, - and Haniif Prasetiawan, - and Dhoni Hartanto, - and Ianatul Khoiroh, - and Slamet Suwito, - and Kuntoro, - (2018) Fractal Kinetics Analysis Of Enzymatic Hydrolysis Of Sawdust Using Cellulase In Ethanol Production. Jurnal Bahan Alam Terbarukan, 7 (2). pp. 100-107. ISSN 2303- 0623

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 Mohamad Setiaji Erfana, - and Dhoni Hartanto, - (2015) Pembuatan Pupuk Organik Cair (POC) dari Limbah Industri Bioetanol (Vinasse) Melalui Proses Fermentasi Berbantuan Promoting Microbes. In: Prosiding Seminar Nasional Kimia dan Pendidikan Kimia (SNKPK) 2015, 10 Oktober 2015, Unnes Semarang.

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