Ning Hong Yeo, "Trig Or Treat: An Encyclopedia of Trigonometric Identity Proofs With Intellectually Challenging Games" English | ISBN: 9812776184 | 2007 | 416 pages | PDF | 3 MB
Gisela Brinker-Gabler, "The Many Voices of Europe: Mobility and Migration in Contemporary Europe" English | ISBN: 3110615266 | 2020 | 186 pages | PDF | 1517 KB
Chris Hall, "Staying Ahead of the Competition: How Firms Really Manage Their Competitive Intelligence and Knowledge; Evidence from a Decade of Rapid Change" English | ISBN: 981277906X | 2007 | 157 pages | PDF | 4 MB