1. Erkata Yandri:
Graduate School of Renewable Energy, Darma Persada University, Jl. Radin Inten 2, Pondok Kelapa, East Jakarta 13450, Indonesia; Center of Renewable Energy Studies, Darma Persada University, Jl. Radin Inten 2, Pondok Kelapa, East Jakarta 13450
2. Rinaldi Idroes:
Department of Chemistry, Faculty of Mathematics and Natural Sciences,Universitas Syiah Kuala, Kopelma Darussalam, Banda Aceh 23111,Indonesia
3. Roy Hendroko Setyobudi:
Graduate School of Renewable Energy, Darma Persada University, Jl. Radin Inten 2,
Pondok Kelapa, East Jakarta 13450, Indonesia; Department of Agriculture Science, Postgraduate Program, University of Muhammadiyah Malang, Jl. Raya Tlogomas No. 246, Malang, 65145, Indonesia
4. Carolus Boromeus Rudationo:
Graduate School of Renewable Energy, Darma Persada University,Jl. Radin Inten 2, Pondok Kelapa, East Jakarta 13450,Indonesia
5. Satriyo Krido Wahono:
Research Division for Natural Product Technology - Indonesian Institute of Sciences,Jl. Jogja - Wonosari, km 31.5, Gunung Kidul, Special Region Yogyakarta 55861,Indonesia
6. Rangga Kala Mahaswa:
Faculty of Philosophy, Universitas Gadjah Mada,Jl. Olahraga, Caturtunggal, Depok, Sleman, Yogyakarta 55281,Indonesia
7. Juris Burlakovs:
Department of Water Management, Estonian University of Life Sciences,Tartu, Estonia; Friedrich Reinhold Kreutzwaldi 1a, 51014 Tartu,Estonia
8. Herry Susanto:
Graduate School of Renewable Energy, Darma Persada University,Jl. Radin Inten 2, Pondok Kelapa, East Jakarta 13450,Indonesia