This book illustrates the diversity of hypogene speleogenetic processes and void-conduit patterns depending on variations of the geological environments by pres

This Manual is for senior adolescents in years 10 - 12 to assist friends who have mental health problem.

This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the publi

This comprehensive manual of water supply practices explains the design, selection, specification, installation, transportation, and pressure testing of concret