I got the answer from the MySword team and it works! Here is their reply:
You can actually check the generated HTML of Journal entry with Bible link which can be created by Premium/Deluxe users using any SQLite manager/editor. Anyway the syntax is:
<a class='bible' href='#bRom 8:28/KJV'>Rom 8:28</a>
You can place the specific module abbreviation after a slash. You can also include the KJV before the </a> as it is just display text.