diff --git a/MLbusi_cert.pdf b/MLbusi_cert.pdf
new file mode 100644
index 0000000..d493a1a
Binary files /dev/null and b/MLbusi_cert.pdf differ
diff --git a/inter_import_cert.pdf b/inter_import_cert.pdf
new file mode 100644
index 0000000..692c2f6
Binary files /dev/null and b/inter_import_cert.pdf differ
diff --git a/intr_git_cert.pdf b/intr_git_cert.pdf
new file mode 100644
index 0000000..531f43e
Binary files /dev/null and b/intr_git_cert.pdf differ
diff --git a/join_cert.pdf b/join_cert.pdf
new file mode 100644
index 0000000..970a638
Binary files /dev/null and b/join_cert.pdf differ
diff --git a/pre_pyth_cert.pdf b/pre_pyth_cert.pdf
new file mode 100644
index 0000000..b580200
Binary files /dev/null and b/pre_pyth_cert.pdf differ
diff --git a/pyth_pack_cert.pdf b/pyth_pack_cert.pdf
new file mode 100644
index 0000000..09cee14
Binary files /dev/null and b/pyth_pack_cert.pdf differ
diff --git a/regr_stat_cert.pdf b/regr_stat_cert.pdf
new file mode 100644
index 0000000..0dc784d
Binary files /dev/null and b/regr_stat_cert.pdf differ
diff --git a/sup_sci_cert.pdf b/sup_sci_cert.pdf
new file mode 100644
index 0000000..a497887
Binary files /dev/null and b/sup_sci_cert.pdf differ
diff --git a/tabl_cert.pdf b/tabl_cert.pdf
new file mode 100644
index 0000000..d407501
Binary files /dev/null and b/tabl_cert.pdf differ
diff --git a/underML_cert.pdf b/underML_cert.pdf
new file mode 100644
index 0000000..bfcbc31
Binary files /dev/null and b/underML_cert.pdf differ