Activity on Node network diagram and ES, EF, LS, LF, TF, FF as well.

\begin{tabular}{|l|r|l|} \hline Task & Duration (in days) & Predecessors \\ \hline a & 0 & \\ \hline b & 5 & a \\ \hline c & 8 & b \\ \hline d & 15 & b \\ \hline e & 5 & j,i,d,c \\ \hline f & 7 & e \\ \hline g & 14 & e \\ \hline h & 5 & a \\ \hline i & 7 & h \\ \hline j & 8 & h \\ \hline k & 4 & f,g \\ \hline l & 10 & k \\ \hline m & 9 & l \\ \hline \end{tabular}