Ritsleting: Perbedaan antara revisi
Konten dihapus Konten ditambahkan
k bot Menambah: nl:Ritssluiting |
k Robot: Cosmetic changes |
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Baris 52:
* Henry Petroski: ''The Evolution of Useful Things'' (1992); ISBN 0-679-74039-2
* Robert Friedel: ''Zipper: An Exploration in Novelty'' (W. W. Norton and Company: New York, 1996); ISBN 0-393-31365-4
{{reflist}}
== Paten ==
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