Puzzles for programmers and pros by Shasha, Dennis Elliott

Playing and learning outdoors making provision for high quality experiences in the outdoor environment by White, Jan 1956-

The geography of tourism & recreation environment, place and space by Hall, Colin Michael 1961-

Outdoor recreation management by Pigram, John J.

Outdoor recreation in America by Jensen, Clayne R., Guthrie, Steven 1949-

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Introduction to recreation and leisure.

The pleasures of pi,e and other interesting numbers by Yeo, Adrian

Discrete mathematics mathematical reasoning and proof with puzzles, patterns, and games by Ensley, Douglas E.

Marikina Not just Shoe City by Villas, Anna Liza T.

In Manila, some luxuries are free by Antonio, Raymund F.