00:3700:37, 24 August 2019diffhist+17
User:LM6407/Rudy
Changed lead paragraph to "focus on study discussion groups". Changed subtitles to Wikipedia standard. Lower-cased "study discussion group (SDG)" definition.
00:3700:37, 24 August 2019diffhist+17
User:LM6407/Rudy
Changed lead paragraph to "focus on study discussion groups". Changed subtitles to Wikipedia standard. Lower-cased "study discussion group (SDG)" definition.