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Roger Porkess

9 books

370 pages digital 2012

353 pages digital 2012

96 pages paperback

nonfiction mathematics medium-paced

576 pages paperback

nonfiction childrens mathematics medium-paced

415 pages paperback 2004

informative lighthearted medium-paced

512 pages 1397

informative lighthearted medium-paced

214 pages paperback 2004

informative medium-paced

302 pages paperback 2019 user-added

nonfiction education

336 pages paperback 2006

challenging informative reflective medium-paced