[ASK] What are reference/book about MTTF, MTBF & MTTR ?

[Rizkyffq]

As the title of this thread,

is anyone knows what book/reference maybe website that may giving me clearly about MTTF, MTBF & MTTR ? including how to calculate those.
Highly appreciated if the references are relating with manufacturing machine maintenance.

Many Thanks

 

[ScottyUK]

US military reliability manuals here:

https://www.weibull.com/knowledge/milhdbk.htm