200 Strong Calcudoku and 200 Jigsaw Sudoku. Hard and very hard levels.: 9x9 Calcudoku complicated version professional - veteran levels + 9x9 Jigsaw ... and Jigsaw Even - Odd classic sudoku)

Nanotechnologies and Clusters in the Spaces of Higher Dimension: Emerging Research and Opportunities (Advances in Chemical and Materials Engineering)

Computer Corpora and Open Source Software for Language Learning: Emerging Research and Opportunities

Analyzing Future Applications of AI, Sensors, and Robotics in Society

Innovative Perspectives on Interactive Communication Systems and Technologies

Advanced Models and Tools for Effective Decision Making Under Uncertainty and Risk Contexts (Advances in Business Strategy and Competitive Advantage (Absca))

Multidisciplinary Approaches to Crowdfunding Platforms

Indigenous Language Acquisition, Maintenance, and Loss and Current Language Policies

Open Source Software for Statistical Analysis of Big Data: Emerging Research and Opportunities