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the first edition of the permeable membrane book is sold out, but if you want, you can sign up to my newsletter: book number 2 is in planning.
also you'll be updated if I ever sell a second edition of this one.
bottom of page
the first edition of the permeable membrane book is sold out, but if you want, you can sign up to my newsletter: book number 2 is in planning.
also you'll be updated if I ever sell a second edition of this one.