- ISBN: 978-3-639-66001-2

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Theory, Experiments, Analysis and Optimization

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- ISBN: 978-3-639-86121-1

CSR is Enlightenment and Caring to fix the problems of your neighborhood

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Bridging the Gap between Recall and Retrieval of Information

- ISBN: 978-613-8-57150-6

At Karen Technical Training Institute for the Deaf, Nairobi County

- ISBN: 978-3-639-86435-9