ProgTest: An environment for the submission and evaluation of programming assignments based on testing activities. - Draylson Micael de Souza; José Carlos Maldonado; Ellen Francine Barbosa (CSEE&T, 2011)

Um Estudo Experimental do Ambiente ProgTest no Ensino de Programacao. - Draylson Micael de Souza; Sofia Larissa da Costa (CIbSE, 2013)

Towards the use of an automatic assessment system in the teaching of software testing. - Draylson Micael de Souza; Bruno H. Oliveira; José Carlos Maldonado; Simone R. S. Souza; Ellen F. Barbosa (FIE, 2014)

Teaching novice programmers using ProgTest. - Draylson Micael de Souza; Seiji Isotani; Ellen Francine Barbosa (Int. J. Knowl. Learn., 2015)

A Systematic Literature Review of Assessment Tools for Programming Assignments. - Draylson Micael de Souza; Kátia Romero Felizardo; Ellen Francine Barbosa (CSEE&T, 2016)

Problemas e Dificuldades no Ensino de Programação: Um Mapeamento Sistemático. - Draylson Micael de Souza; Marisa Helena da Silva Batista; Ellen Francine Barbosa (Revista Brasileira de Informática na Educ., 2016)

Towards the Role of Test Design in Programming Assignments. - Lilian Passos Scatalon; Jorge Marques Prates; Draylson Micael de Souza; Ellen Francine Barbosa; Rogério Eduardo Garcia (CSEE&T, 2017)

Most common fixes students use to improve the correctness of their programs. - Draylson Micael de Souza; Michael Kölling; Ellen Francine Barbosa (FIE, 2017)