Contracting Of Works Consulting Under The Design And Construction Delivery System Of The Project: Creation And Improvement Of The Drinking Water Service And Installation Of Basic Sanitary Units In 6 Localities Of The District Of Calamarca - Pr - Contracting Of Works Consulting Under The Design Delivery System And Construction Of The Project: Creation And Improvement Of The Drinking Water Service And Installation Of Basic Sanitary Units In 6 Localities Of The District Of Calamarca - Province Of Julcan - Department Of La Libertad, C