saab 56 93 1.8t slow oil leak

[j4ckos mate]

Hi,

ive had a very slow oil leek perhaps a drip a day, from the lower left hand side of the engine, i cant quite see where its from because it seems to be getting spread about by the belt.

naturally i can live with it but dont want to if its a cheap fix,


any ideas anyone?
thank you in advance