Languages without pronouns?

[Elizabeth Ritter]

I've been told that there are languages with NO pronouns.  Does anyone
know of any...and what does the language do instead?   Could such a
language have subject agreement for person and/or number and/or gender?

Also, does anyone know of a language that has a single (true) pronoun
for either
a.    1st OR 2nd person
b.    2nd OR 3rd person

Thanks in advance for any leads.