Mama vs. Momma and Other Kinship Names

Is there a right way to spell mama/momma, papa/poppa and other "kinship names"?

 

[audio:http://www.grammarunderground.com/wp-content/uploads/2012/01/0078-Mama-vs-Momma-and-Other-Kinship-Names.mp3|titles=0078 Mama vs Momma and Other Kinship Names]

 

 

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