P\={a}\d{t}hak, Sarv\={a}nand (1990) {C}\={a}rv\={a}k dar\'{s}an k\={\i} \'{s}\={a}str\={\i}ya sam\={\i}k\d{s}\={a} ({A} critical study of {C}\={a}rv\={a}ka philosophy). [Publication]