https://tverbeke.r-universe.dev/SDaAhttps://tverbeke.r-universe.dev/api/packages/SDaAhttps://tverbeke.r-universe.dev/SDaA/SDaA.pdfhttps://tverbeke.r-universe.dev/SDaA/doc/manual.htmlhttps://tverbeke.r-universe.dev/SDaA/NEWShttps://tverbeke.r-universe.dev/SDaA/NEWS.txthttps://tverbeke.r-universe.dev/SDaA/citationhttps://tverbeke.r-universe.dev/SDaA/citation.txthttps://tverbeke.r-universe.dev/SDaA/citation.cffhttps://tverbeke.r-universe.dev/SDaA/doc/SDaA_using_survey.Rnwhttps://tverbeke.r-universe.dev/articles/SDaA/SDaA_using_survey.pdf