validation of MPPT of solar cells papers

i have 9 research papers about maximum power point tracking of solar cells using different algorithms such as pso and p&o and others and all of them contain the flowchart used and the simulink scheme and i need to validate only any two papers of them , i will send the 9 papers to the interested one and he will select any 2 papers of them and make the matlap/simulink of them to produce the resul