Tolong jelaskan mengenai Mastadonia by Cliford Simak dari Perjalanan waktu

October the First is Too Late by Hoyle

Paratime series by H. B. Piper

Rotating Cylinders and the Possibility of Global Causality Violation by Larry Niven

The Coming of the Quantum Cats by Frederik Pohl

The End of Eternity by Isaac Asimov

The Other Side of Time by Keith Laumer

The Time Traveler's Wife by Audrey Niffenegger

Thrice Upon a Time by James Hogan

Time Wars series by S. Hawke

Twice Upon a Time by Allen Appel

Doomsday Book (ISBN 0553562738) and To Say Nothing of the Dog by Connie Willis

Lost in a Good Book by Jasper Fforde

The House on the Strand by Daphne du Maurier

Household Gods (1999) by Judith Tarr and Harry Turtledove

"Thus We Frustrate Charlemagne" by R. A. Lafferty published in Galaxy in 1966 and also appeared in Alpha 1 (edited by Robert Silverberg) and World's Best SF 1968 (edited by Donald A. Wollheim and Terry Carr).

Up the Line by Silverberg

Wrinkle in Time by L'Engle, with several sequels