Hi Jose,
you can refer to the Oracle website, for example at this link http://www.oracle.com/technetwork/database/features/jdbc/jdbc-drivers-12c-download-1958347.html.
Keep in mind that the version must be also referred to the jdk installed and in use on your machine.
In addition, the version of the driver need to match with the version of the DBMS.
Also, you can refer to this Online Training https://www.webratio.com/learn/learningobject/connecting-the-database-v-72 to see how connect the database in WebRatio.
Best regards.