diff --git a/artigo/Grafico_us7_totalSessoes.pdf b/artigo/Grafico_us7_totalSessoes.pdf
new file mode 100644
index 0000000..16788e9
Binary files /dev/null and b/artigo/Grafico_us7_totalSessoes.pdf differ
diff --git a/artigo/Grafico_us7_totalSessoes.png b/artigo/Grafico_us7_totalSessoes.png
new file mode 100644
index 0000000..5bf6fe7
Binary files /dev/null and b/artigo/Grafico_us7_totalSessoes.png differ
diff --git a/artigo/MedianaSessoesPorAluno.pdf b/artigo/MedianaSessoesPorAluno.pdf
new file mode 100644
index 0000000..c99c536
Binary files /dev/null and b/artigo/MedianaSessoesPorAluno.pdf differ
diff --git a/artigo/MedianaSessoesPorAluno.png b/artigo/MedianaSessoesPorAluno.png
new file mode 100644
index 0000000..2012fd0
Binary files /dev/null and b/artigo/MedianaSessoesPorAluno.png differ