CHCORG3B: Communication techniques that consider cultural sensitivities, values and practices - i like that this resources explains techniques that will achieve equal treatment, and that will work for everyone.
Barriers to Effective Communication | SkillsYouNeed - i feel like this site offers an explanation to different barriers to effective communication in a simple, quick way, that you can glance over and instantly understand, it is straight to the point and you're not reading anything that doesn't really matter.
Blind and Vision Impaired - ADCET. This organisation provides useful information and tips for educators including teaching strategies, assessment strategies and general communication strategies when facilitating communication for students.
4 Different Types of Barriers to Effective Communication - this resource is one of the most specific, i like that it really breaks down every barrier, and every component within that, it explains why it is a barrier and why things need to be looked at differently.