Who were shem ham and japeths wives?

The Bible doe not say.

No, but there are other scriptures that do.

From the book of Jubilees:

• Wife of Noah - Emzara, daughter of Rake'el, son of Methuselah
• Wife of Shem - Sedeqetelebab
• Wife of Ham - Ne'elatama'uk or Na'eltama'uk
• Wife of Japheth - 'Adataneses

Recall the sons of Noah were the Patriarchs of the world's races. Shem married an oriental woman and moved to the Holy land, gave birth to the S(h)emites - Semitic races of the Middle East. While Ham travelled to the south with his Ethiopian wife and raised his family in Egypt and northern Africa. Japheth's wife was Caucasian (from the Caucasus Mountains) and traveled north raised his family.