Content of Question	Reference
1.  Perceived effectiveness (PE)	[8,18,31]
You can easily use the online database.
You put your trust in using online databases for your learning.
You are proficient in using electronic devices to access online databases.
2.  Perceived ease of use (PEU)	[11,20,37]
You find the online database system easy to use.
Online database system makes it easy for users to learn.
Easy online database system can be proficient in using.
You find it easy to exchange information with the online database system.
The online database system has a convenient interface for use.
3.  Technical barriers (TB)	[3,20,21]
Some operating systems on electronic devices do not support online database system access.
The ability to store the database and the speed of user access is affected by the information technology system.
Accessing online databases requires separate software, requiring an understanding of information technology of users.
4.  Perceived usefulness (PU)	[11,20,37]
Using online databases to improve learning.
Using online databases to improve learning outcomes.
Materials provided on the online database are useful to students.
Use the online database to bring utilities.
5.  Attitude to use (ATU)	[9,20]
You prefer online databases.
You like to use online databases for learning.
You feel that online databases have many advantages.
6.  Convenience (CE)	[24,25]
Online databases are accessible anytime, anywhere as long as there is an internet connection.
The current online database is easily accessible.
Online database helps you save time studying.
Online database helps you be proactive in arranging study time and finding documents.
7.  Intention to use (ITU)
You want to experience all the features of the online database.	[9,20]
You are ready to experience and use new online databases.
You will continue to use online databases that are in use for a long time and often.
You will recommend these online databases to those who do not know or new students to the school.