First of all, I want to brief about the meaning of the sourcing material. Sourcing material is the place where you can get the information. Information are divided into three levels which are single-fact information, General information, and In-depth information. To find all of this three level information, we have to know how to locate the sources.
For example we can find the information from the Internet, such as e-Journals, search engines, group discussion forum, and online discussion journals. Whether you are workers or students, you can just surf the browser and used them as source to find the ideas of your findings. In addition, it makes you more easier because Internet can be access everywhere and everytime as long as you are connected to the network.
The next point , we can look for periodicals as it contain the writings of people who share their particular of study.. For example, we can get the information from journal, specialised magazines and newspapers. Besides, we can also use the theses and dissertation and books to find the information. But it is more costly compared to have an Internet as the source.
In conclusion, we can have the idea in just a second if we smart in choosing the source! So start to find an idea from each of the sources mentioned above as your additional materials in your project. Have a try guys! :')