3 x 90-91 Techno

Attachment 79440
Attachment 79441

Hey guys,

these 3 are doing my head in.

Im supposed to have the first one, but I can't seem to find it :confused:
The other two are a total mystery!

Any help is much appreciated!

Edit:

Attachment 79442 Id'd by 303 jewels

3rd is is 'self preservation' on this: https://www.discogs.com/The-MD-Conne...elease/1306421

Thanks 303jewels!