| 21 | The 5th International Conference of Euro Asia Civil Engineering Forum | Predicting the remaining service life of road using pavement condition index | Universitas Petra Surabaya | S-1 Teknik Sipil | Ir. Ary Setyawan, M.Sc., Ph.D. |
| 22 | The 5th International Conference of Euro Asia Civil Engineering Forum | Predicting the remaining service life of road using pavement condition index | Universitas Petra Surabaya | S-1 Teknik Sipil | Dr. Ir. Arif Budiarto, M.T. |
| 23 | 4th International Conference and Exhibition on Sustainable Energy and Advanced Materials | Enhancement ZnO Nanofiber as Semiconductor for Dye-Sensitized Solar Cells by Using Al Doped | Universitas Sebelas Maret-Uniersiti Tekninal Melaka Malaysia | S-1 Teknik Mesin | Prof. Dr. techn. Ir. Suyitno, S.T., M.T. |
| 24 | 4th International Conference and Exhibition on Sustainable Energy and Advanced Materials | Enhancement ZnO Nanofiber as Semiconductor for Dye-Sensitized Solar Cells by Using Al Doped | Universitas Sebelas Maret-Uniersiti Tekninal Melaka Malaysia | S-1 Teknik Mesin | Prof. Dr. Eng. Syamsul Hadi, S.T., M.T. |
| 25 | 4th International Conference and Exhibition on Sustainable Energy and Advanced Materials | Enhancement ZnO Nanofiber as Semiconductor for Dye-Sensitized Solar Cells by Using Al Doped | Universitas Sebelas Maret-Uniersiti Tekninal Melaka Malaysia | S-1 Teknik Mesin | Prof. Dr. Ir. Zainal Arifin, S.T., M.T. |
| 26 | 4th International Conference and Exhibition on Sustainable Energy and Advanced Materials | Effect of Acidity on the Energy Level of Curcumin Dye extracted from Curcuma Longa L. | Universitas Sebelas Maret-Universiti Teknikal Melaka Malaysia | S-1 Teknik Mesin | Prof. Dr. techn. Ir. Suyitno, S.T., M.T. |
| 27 | 4th International Conference and Exhibition on Sustainable Energy and Advanced Materials | Effect of Acidity on the Energy Level of Curcumin Dye extracted from Curcuma Longa L. | Universitas Sebelas Maret-Universiti Teknikal Melaka Malaysia | S-1 Teknik Mesin | Prof. Dr. Ir. Zainal Arifin, S.T., M.T. |
| 28 | 4th International Conference and Exhibition on Sustainable Energy and Advanced Materials | Synthesis and Characterization of Natural Red Dye from Caesalpinia Sappan Linn | Universitas Sebelas Maret-Uniersiti Tekninal Melaka Malaysia | S-1 Teknik Mesin | Dr. Rendy Adhi Rachmanto, S.T., M.T. |
| 29 | 4th International Conference and Exhibition on Sustainable Energy and Advanced Materials | Synthesis and Characterization of Natural Red Dye from Caesalpinia Sappan Linn | Universitas Sebelas Maret-Uniersiti Tekninal Melaka Malaysia | S-1 Teknik Mesin | Raymundus Lullus Lambang G H, S.T., M.T. |
| 30 | 4th International Conference and Exhibition on Sustainable Energy and Advanced Materials | Synthesis and Characterization of Natural Red Dye from Caesalpinia Sappan Linn | Universitas Sebelas Maret-Uniersiti Tekninal Melaka Malaysia | S-1 Teknik Mesin | Prof. Dr. techn. Ir. Suyitno, S.T., M.T. |
