does anyone have information or downloading links for the following books ?

- Technical calculation and estimator's man hours manual by Marko Bulic
- Piping Manhour Manual for Industrial Construction by Norm Goodings
- Pipefitter estimator by Norm Goodings

I have been looking in all the web but without results.

Thanks in advance

In the meantime I leave you the following links with other useful books :

[link Point to another website Only the registered members can access]

[link Point to another website Only the registered members can access]

[link Point to another website Only the registered members can access]