| 1 | Introduction to humic substances | [1] 1-24, 52-55, [3] 1-3 |
| 2 | Classification of humic substances | [1] 1-24, [2] 2-5 |
| 3 | Structure of humic substances and solubility properties | [1] 157-162 , [2] 2-5, 54-114 |
| 4 | Natural sources for humic acid production | [1] 1-55, [5] 1-10 |
| 5 | Extraction of humic and fulvic acids | [1] 1-55, [5] 1-10 |
| 6 | Characterization of humic substances | [1] 103-110, 157-170, [3] 6-11 |
| 7 | Interaction of humic substances with chemical species | [1] 76-84, 110-151 [3] 11-14 |
| 8 | The usage of humic substances in separation and purification processes | [3] 14-17 |
| 9 | Humic acid-derived solid/stationary phases | [3] 14-17 |
| 10 | Industrial branches where humic substances are used | [3] 1-3 |
| 11 | The role of humic substances in environment | [1] 24-30 |
| 12 | Sources of humic substances in Turkey | [4] 1-3 |
| 13 | Extraction of humic and fulvic acids from lignite (Laboratory practice) | [3] 38-40, [5] 1-10 |
| 14 | Characterization of humic acid by spectroscopic techniques (Laboratory practice) | [3] 44-45 |